Yes, I agree with many of your points. As I said above, I think he's very conflicted. He knows his modeling is not the macho straight stud image he wants to be, but he also wants the fame and money of it. His day job is/was working at a tire store. Nothing wrong with that, but he's likely hoping to make it big as a fitness model. That industry is riddled with gay following, because, frankly, most women aren't into it. Women do like hot guys, but they are not as body focused on the men they think about (if I may use a generality). Gay men love visual stimulus and are more likely to become a fan of a young hot guy who shows some skin. I think a lot of gym guys can't acknowledge the inherent vanity and homoerotic nature of body building. They take photos with their shirt off or like him, showing his ass, then put #nohomo on it as if that negates what it is. It's like me eating a banana split, but putting #healthyeater on it to make myself feel better.
Regardless, if he does do more nudity, I'll be happy to look at it. As you said, he's unlikely to make it beyond Insta and AAG fame, so we'll see what he does. If he's already caved and posed for a rear nude (and done the wrestling videos mentioned in this thread), it may not be that long before he wipes his dick out for the sake of art.