The bad thing is that we're biasing our culture in a particular direction and pretending that we're not. "Diversity selling" is the product of a massive intentional cultural shift and I'm surprised people get so upset when it's pointed out to them.
You suggest there is "a pattern of attempting to mythologize as many females in STEM fields as possible", but perhaps it's the case that males are already as sufficiently mythologized as is possible, and what you are seeing is the mythologization of women catching up to men.
For that matter, you haven't defined what 'mythologized' means, nor how one can tell if someone is 'mythologized' or if a given category of people is under- or over-mythologized.
Without these, you have the advantage of controlling the discussion, because you are in charge of the definition.
My other commentary is to show that such terms can be defined in ways that others can verify for themselves. Your inability to come up with a meaningful definition, combined with your apparent cherry-picking of the data, likely contributes to the downvotes you've received.