I think the next time Leonard Nimoy makes a public appearance and he's talking about it, you should leap-up and shout "liar!"
and then you could have a powerpoint presentation explaining the truth.
What the hell do you expect Nimoy to remember continuity wise after more than forty years? He's an actor, not a writer or continuity consultant. He just gets paid to read the lines.
Evidence is offered up to illustrate the point, but all we get from the other side is, "No, it isn't. No, it isn't. No, it isn't. No, it isn't. No, it isn't. No, it isn't..."
You ask why it bothers me? I can ask the same, why does what I conclude bother you? If you liked the film then what do you care one way or another?