not to be pedantic but

if this person was performing in drag, then wouldn't they have to be born male, and presenting as female?

and if they were a trans woman, then they would just be dressing up like any other woman, and it wouldn't even be drag.

so if the author assumes this persons preferred pronouns are she/her,

the the author is erasing drag queens.

and is probably a "phobe" of some sort.