I gotta tell you though...it's this level of over-analysis (that we admittedly all do) that drives me crazy.
Realistically, we need to accept that there's things that storytelling will demand that aren't going hold up under tight scrutiny or "the quest for realism". Nobody gives a shit if Petty Officer Johnson goes out in the thruster suit. Sure, it's realistic I guess...but storytelling is about experiencing things through the characters. It's why Kirk almost always beamed down on every mission. He's the star. Nobody cares about what Lt. DeSalle thinks about The Guardian of Forever.
Like, it's pretty fucking contrived that the Reliant just happens to go to Ceti Alpha 5, find Khan, and have that happening at the exact same time Kirk is about to (under obviously rare circumstances) be back together with his old crew on a training mission aboard his old ship. But...you wouldn't have "The Wrath of Khan" without that.
Most stories across most genres are built upon contrivances.
If you're looking for a reason to dislike something, you're bound to find it. Probably a lot of it.