One thing that I always wish horror games like fnaf had was variable jumpscares, and there's probably an optimal way to do it.
They always have less impact after a few losses, so maybe the first jumpscare is always guaranteed to be set to default, but with each progressive jumpscare, the chances of getting a different scene increase, so that by 2-4 times of losing to a character, you get a second scene. Perhaps there is another even rarer scene that only happens 1 in 30 times to really catch you off guard, and can only becomes a possibility after you have gotten all the other scenes at least once or twice. If a player loses once, they might not necessarily lose to that same mistake again, but if a player is losing multiple times, they are probably going to continue struggling, so it makes sense to have scenes get progressively more rare.
Anyways, I've thought about stuff like this alot. Just another potential reason that In-heat will objectively be the fnaf-killer of all time.