yes chapel is a bit much, I think she should have just been a new character and this episode I am mixed on it.
Uusally
uhura never served with pike and she had no reaction to seeing pike in TOS when he had become paralysed. Uhura should not be on the crew, in cannon she served first under Jim Kirk.
Chapel joined the crew to search for her fiancé and her character here as many have said is so different, it is hard to reconcile both.
Sorry might I strongly suggest you rewatch TOS because nothing you state is ever said to be so in Trek.
Valden there is no dialogue ever stating that Uhura only served with Kirk, in fact TOS makes no mention of her career with Starfleet at all.
Now onto "The Menagerie I and II, your statement, "She had no reaction seeing Pike in TOS" is utterly without merit.
Lets look at the Menagerie (I & II), we discover Spock faked everything, starting with the original message.
Kirk states, "Mister Spock received a starbase transmission, a message from the former commander of the Enterprise, Fleet Captain Pike, urgently requesting that we divert here." That's Spock not Uhura. We also quickly learn that Pike couldn't have sent that message something McCoy dn Kirk are unaware of that, that Pike has been in an accident and can no longer use language to communicate.
Mendez mentions some subspace chatter but its not widespread information, so its very possible that Uhura has no knowledge at this point of Pike's accident or condition or that he is on the Starbase.
We know Pike isn't taking visitors, Mendez goes against his wishes to even bring Kirk, Spock and McCoy to see if he would make an exception. He states no, only direct appeal from Spock lets Spock get time with him.
There is no information that ever states that the crew is made aware that Pike is on that Starbase outside of those three people who had direct contact with him. Period.
Spock then maneuvers the crew to take command and go on a clandestine mission. McCoy is brought aboard, without giving knowledge about why or who is injured. Pike is then beamed aboard. We don't see this, and we don't see who performs the transport or escorts him to quarters. Now lets even assume this isn't done by Spock (even though technically it absolutely could all be done by Spock). If it was a transporter officer who beamed him up, how would they know that person is Pike? Again not common knowledge nor can Pike speak to identify himself. They would have to be told who it is. And there is literally no reason Spock would volunteer this as its not necessary.
McCoy states to Spock on the bridge, "And this call about me being needed aboard the ship. I've checked everywhere"
That indicates that no one is sharing information about a someone who might need medical attention being onboard. Which gives credence that either Spock handled the direct transfer of Pike to the Enterprise and his quarters or ordered those that did to not relay any information about it (one other final possibility is that McCoy is utterly crap at looking everywhere, I'm giving him the benefit of the doubt here).
We know the original orders Spock fakes informs Uhura and the Lt Hansen, who appears to be the officer on duty on the bridge that the mission is top Secret. That the crew is not to be informed and that the orders are fed directly to the chips computers and not given to either Hansen or Uhura.
This is where Spock takes McCoy to see his new charge. And this point Uhura should have no reason to believe or suspect that Pike was on Starbase and is now on the Enterprise.
When McCoy discovers Pike, Spock provides again fake orders from Kirk, "Kirk to Doctor McCoy. I'm recording you this message, Bones, so there will be no misunderstanding. I'm sorry to have to make it an order. You're not to disturb Captain Pike with any questions. Simply take good care of him. Follow Spock's instructions to the letter. Kirk out." There is no reason at this stage that the crew outside of McCoy (or in case of medical emergency other medical staff) would be told about Pike.
Later Spock stops the Enterprise and has the shuttle with Kirk and fake Mendez tractor into the ship and orders security to the bridge and offers himself up for arrest. This scene is the last scene with Uhura, we get a few times were she relays messages (her voice as she is offscreen).
Now once Kirk comes aboard, and Pike is shown to at least move between the trial and his quarters and (we see security guards, a crew person handling the recorder, and Scotty present as well, we can assume that it becomes known that Pike is now aboard the Enterprise.
But we never see any reaction by any of the 423 other crew members that weren't previously aware that Pike was there. Please tell me your rational enough that just because we don't see it that it doesn't mean it could have happened. After all they are days away and we don't see Uhura at all during any of this time, do you assume she didn't have any reaction about what happened to Pike or try to see him. That since the last time we saw her she on the bridge that she just sat there for days and nothing ever happened to her outside of the four times we hear her voice?
Now since Pike wasn't having visitors on Starbase, Uhura might not have been granted access to see him, that's consistent with what little dialogue we have, but that again doesn't mean she didn't have a reaction to the news of his accident the state of his being or that he was on board, when that news became more common on ship. Its utterly ridiculous to assume this events couldn't have happened. Utterly ridiculous.
On to Chapel, there is no dialogue that indicates Chapel joined up to search for her fiancé. Period. The only statement EVER made from Kirk, "I understand you gave up a career in bio-research to sign aboard a starship".
Doesn't state what starship or when it occurred, or if it had anything to do with Roger. We only know she gave up a career (a job) to serve on a starship.
The only other aspects of her past is that at some point (and we don't know when) she was a student of Kirby. We don' know if this was earlier in her scientific studies or much later. We know she hadn't been in contact with him for 5 years, we know people know where his research was being done at, and that multiple expeditions had not found any trace of them. And we know he was her fiancé. And at the end of the episode we learn she is staying with the ship.
People use that ending line and the gave up a career to serve on a ship as the basis to the conjecture that she joined to look for Roger. But it is still only conjecture. Literally Chapel is staying with he ship might just mean she's not taking personal leave to deal with the death or her fiancé.
Judging a show by conjecture is utterly irrational. Now most of us (myself absolutely included) have of course wanted to enrich the universe we love and feel in the blanks, but a reasoned person should understand that itsconjecture and the conjecture of others even if over the decades and assumed to be fact, doesn't make it so.
It's as utterly irrational as those fans in '82 who complained that Chekov couldn't have known Khan (and the reverse) because Chekov wasn't part of the crew in season 1. When in fact anyone with even a modicum of rational thought should understand that we have no knowledge of when Mister Chekov joined the crew, we only know when Koenig started portraying the character of Chekov. Which is a vastly different fact.