The writer makes it impossible. There's no law or rule that says it needs to follow the established template. Be different from LIL/Sensei Overnight.
So many other games are generic to everything else but because the theme isn't as obvious as it is with LiL-likes it doesn't stand out as much.
LIY is the best LiL-like, it takes the format while offering a linear VN experience, has generally better writing than the rest and the girls are all well designed. I do think the season 1 ending was a little too on the nose but this is overall more enjoyable than LiL and a lot less convoluted.
If you don't like LiL-likes then just play something else. Not everything needs to be perfectly unique and original and if it did then I suspect a lot of your favourite games wouldn't exist either.
Also since you brought it up, fuck the pedophile sensei janitor game. Any dev who does that shit shouldn't be used as a standard no matter how relevant their game is to the discussion.