Anghraine

Not sure how much TOS behind the scenes you've gotten into but from what I've read, Roddenberry was going through a divorce and when he said no women in command, he meant it, 'cause he was pissed and bitter at his ex-wife. So. Yeah.

FWIW, most people hand wave Lester's comments as a symptom of her instability and a way for her to rationalize not getting a command rather than face up to her career disappointment.