Hatch should only spawn with <5 gens done when there’s only one survivor left.
Spawning it when gens still have to be completed by 2 survivors makes it really unfair for 1 of them, because as it stands currently, scaredy cats will hide or hold hostage and force the other survivor to effectively kill themselves to end the match. You know, instead of the last survivors trying to get out alive together.
It also just feels really cheap as the killer. If I am able to, I would much rather kill the guy not participating than the one actually trying to do the objective.