I'm glad that at least someone is positive about the options but I have to disagree with what you said about 'pandering' and 'genuine diversity'. First, the game already went the pandering route with the wlw options as they satisfy both actual lesbians/bi girls and straight men (I'd argue especially straight men). The fact that they aren't willing to do the same for mlm options feels like a double standard.
For diversity, it almost feels like IS is being too afraid to make a young, masculine character bi. Of the handful of bi/gay characters since Awakening, there is not a single character that can be considered as a young alpha male. I'd say Leon, Niles and Linhardt leans toward the slightly feminine side with how they look and the way they act. In TH, they included two more masculine options but the fact that both are older men and have pre-established families sends a very weird message. Even when they increased the amount of bi men, they still manage to avoid a very specific type of character that is the most popular among gay/bi men (and also straight women). Literally, any of Felix/Sylvain/Dimitri/Claude/Caspar/Raphael etc. can potentially fulfil that spot but nope, IS decides that gay men want a feminine looking student and two daddies with children.