This is definitely bad for readability, the user, and all that. Please, anyone reading this who complains about line-heights and font-sizes, pay attention to grammar as well.
It's just awkward, please stop with the forced gender equality if that's what that is. If it's just being playful then I guess you can shrug it off.
"The developer refuses. She’s worked too hard on Feature X, and dammit, you’ll have to pry it from her cold dead hands!!!"
With the exception of the unnecessary extra !! I don't see what is wrong with the grammer, it's clear in this context that "she" is the developer.
What kind of BS magic thinking is that?
If you want to inspire women, teach them about the technology as girls and encourage those who like to work with it.
Pronouns ain't where it's at.
There is no loss of clarity in writing whether your hypothetical developer is a "he" , "she" or any other pronoun. It is certainly preferable to clumsily using "they".
Edit: Oh, and language has a massive effect on our thinking patterns, so yeah, you actual could possibly make the case that pronouns matter. They don't to me, at all, and if they "don't" to you, why express frustration or call it "BS"?