Now it is my turn to lol

as I do all the time when I am misquoted. Correction I never said Spock and Uhura were in love in TOS. I said they had potential to be a couple and Nimoy and Nichols had a good rapport with each other compared to Nimoy and Majel. things were different in the 60s because it was still taboo to show a stable romance between black and white people on tv. However the few scenes we got from spock and uhura in tos, gave them more potential than spock and chapel that always did play out as a crush on Chapel's part alone. Spock never reciprocate it, that was part of the running but painful joke of Chapel's character in TOS.
A lot of the body language here between spock and uhura in TOS shows a very playful side, we have yet to see in SNW, So it is not like I am making it up. Here is proof.
To add more to this, it feels as if there are now more deleted scenes of Nimoy and Nichelle that I doubt can be argued Abrams fans made things up in their heads if spock and uhura had a thing for eachother.
Here is a deleted scene of TOS Uhura singing a love song to Spock.
Wonder why they cut all this scenes out in TOS.

It was bad enough Nichelle sometimes felt depressed on the show and wanted to leave because she was not been given enough until Martin Luther King convinced her to stay but they still cut some good scene like these two.
So there, I have given good substance for spock/uhura as a potential couple in TOS that was perhaps limited by the times of the 60s. It should debunk any theory it was an Abrams fantasy.
Moving on to your other point, In TOS Spock had many chances to show feelings for chapel even under some influence but it never happened. when he had a chance to show feelings for a woman, it was with Leia Kemoni and he showed real feelings for Zarabeth in all our yersterdays. those were the only two women in TOS , Spock had real romantic affection for at some point not Chapel.
Uhura was never giving a real fair chance for us to tell if he would have had feelings for her due to the racism of the 60s. Even her kiss with Kirk has kind of aged poorly because they only kiss because they were brain washed. interracial romance/teasing was still that limited that it needed some explanation why different races need to kiss.
Also you do also know that in that episode it was Spock and Uhura that was meant to kiss until Shatner said he wanted to kiss Uhura to make history as the official first interracial kiss. A story Nichelle has confirmed.
https://www.telegraph.co.uk/tv/0/nichelle-nichols-story-kiss/
Now imagine if spock and uhura had been the two characters that kissed as originally planned. I doubt there will be any debate that it is abrams lovers pushing a theory. Abrams lovers never had to push things. Abrams saw some of the few dynamics of TOS with spock and uhura and gave them a shot to be a couple in an alternate reality that did not hurt prime canon.
Lastly I am no huge Abrams lover, although star trek 2009 is one of the best sci fi of its era, It had some flaws I did not like and thought were jarring like Kirk going from suspended cadet to captain, However SNW has some bigger flaws and some bigger shortcomings than star trek 2009.
If you want to know how I feel about Abrams Trek in general, I think star trek beyond is the best star trek of the modern era because it has neither of some of JJ Abrams directing issues and at the same time does not go into CW quality kind of star trek like SNW, Discovery or Picard seem to be doing. JJ served as a producer only in Star Trek Beyond.