I don't get the transgender thing either. I'd think anyone would be upset if this was a favorite character and they killed her off this pathetically. It's like the Human Torch being knocked into a coma with a beer bottle or something.
Sounds like a combination of suicide by thug and uninspired writing.
I think it's the quote that has something to do with it: "...she was trying to trap normal guys." That's right out of the shitty transgender-bashing playbook. I think that's echoes one of the justifications of the murderer and rapist of Brandon Teena.