Star Trek is not about the lives of straight people in a world of LGBTQ+ people, so to compare Queer as Folk to it in terms of representation is ridiculous. And, as said, there were straight people in it too, so it's a doubly terrible analogy.
I am starting to get the sense that Mariner is taking advantage of the fact her mother is letting her slide. It seems to be a deliberate attempt to provoke Freeman directly, and Freeman, as frustrated as she is, can't bring herself to end her daughter's career. I wonder if Freeman, finally understanding her daughter's behavior can be dangerous (like what if Boimler had been killed by that bat'leth accident), feels forced to court martial and convict,would Mariner see it as justifiable punishment or instead use her mother as an excuse and blame her crappy life on her.