Well, the comment about putting gay men in straight/bisexual situations.
All of the things you listed play with the characters' story and their personalities. Spencer likes dancing/stripping, so the audience for him doesn't matter. He just gets more out of it when it's men praising/watching him. Chester's straight friends, who thought he was also straight, put him in a really bad situation. They didn't know he was gay and forced that on him. Dozer, I don't really get where you're going with his and how that plays into the straight/bi thing. Darius is just sex-positive and all for that kind of stuff. He can appreciate the male and female body. Ladies don't do it for him, but he's definitely gonna support the situation. I also don't really see the issue with watching soft-core porn, especially when it goes on to talk about the strange plot and attractive male lead. Like, why can't a gay man enjoy something like that in some way?
I am a 100% gay man here, and I, personally, don't see any problem with gay guys being in these kinds of situations. I just thought it was a weird thing to comment on. Reminded me a lot of this guy in the past that -really- hates seeing bisexual guys in the VN.