I don't know, sexuality is weird and complex like that. Far too many people shy away from things or kinks that their pre-conceived notions think they wouldn't be into without ever getting to try it first. It causes games like these to not have as much awareness and following as it should, given it's perceived quality.
It's mainly multiple factors combined : people having this fake notion that other people's sexuality is an attack on their own (usually happens with men more than women, though both do), religious notions ingrained in modern society (even if the person isn't religious and their country pretends to be ruled with no religion having its fingers in it), a long-winded messed up notion of gender roles (notably "what a real man should be") and a subconscious refusal to accept that what they previously considered to be set in stone about their own sexuality might have changed over time.
Mix all that together and you get the close-minded, toxic mindset that make it so hard for the LGBTQ+ comunity to even exist...
Though, from what little lore we have with this game, it seems the dev (so far at least) decided to not fall in the trap of labeling the characters as something other than the in-game lore terminology. And I think that's really to the game's benefit. Sure some people will trash the game because they'll see it as an attack on their heterosexuality, but who cares, honestly.
Right now, Alice and Lisa aren't male, female, trans, traps or anything, they're "bees". They're their own people that aren't labeld as anything else but themselves. And writting-wise, it's honestly refreshing to see such a simple, honest thing.
I just hope the dev will keep it up in that route. Especially since the "bees" don't seem to have a very happy past/origin, that would balance out that part a bit and help not make the atmosphere too dark when it's time to learn more about them on a personal standpoint.