^This. In-universe, Picard, Riker, and company had a lot more missions of various starships to be passingly familiar with. They didn't spend 20 years studying the same 79 missions by the same crew over and over and over again.
Might have been a good opportunity to establish Kirk's HeadMcCoy....Confession: I once realized that I had McCoy in two places at once, down in sickbay where he belonged AND up on the bridge during a crisis. I ended up having to rewrite the bridge scenes and give McCoy's dialogue to another character.
She was arguably there to underscore the difference between the two timelines...no therapist on the bridge in the other one.The weirdest one for me being Deanna Troi in "Yesterday's Enterprise". She's actually present on the bridge scenes capping both ends of the alternate reality, but she doesn't so much as get a single line of dialogue or even a close-up shot. She's just there, presumably because the actress was still being paid regardless. It's almost like she wasn't even written into the script, but they just happened to have Marina hanging about on the stage that day, so they said 'Yeah, sure, why not? Get yourself down to costume, and then we'll put you on the bridge anyway'.