Is this Awakened Garou or Garou when his Limiter is breaking? I'm gonna go with Garou either way because he can use the Void Aura Ripping Fist on his own, which Bang can't do without Bomb. Bang with Abandonment does have a chance at beating the weaker version of Garou though.
I'm perfectly fine with this, as long as they don't change a pre-established character into a non-binary/homosexual character when said character wasn't before.
And obviously, the story has to be well-crafted. If the creator makes everything about the story revolve around the superhero's gender/sexual preference, then the story and plot could suffer.
For example, a story about a character who is straight and/or identifies as a man/woman doesn't revolve around that fact. It's just an attribute of the main character that can be expanded upon if the author feels it's necessary to make the overall story better.