Math is an important life skill, and when you go deeper it also trains you in logic. I'd rather everyone learn math better. Everyone.

As for people and situation in fics, I see it the same as job recruitment.

Are you hiring her because she is a woman, and you need to balance the numbers to be PC?
Are you hiring her because she is a woman, and you think she is hot?
Are you not hiring her because she is a woman, and you think women can't do the job?
Or are you making decisions based on pure merit?

Meritocracy for life man.