How Keys could be Nerfed
Keys were a mistake from the start. They allow survivors to win the game after they were about to lose. Mori's got nerfed (which they should have) so why shouldn't keys. I think I have a good solution.
So first the hatch mechanic would have to be changed. Instead have hatch spawning when there are more gens done then survivors, it should only spawn when there is one survivor. Hatch itself I feel is a nice thing for the one survivor that did most of the work and deserves an escape, but it shouldn't be used to let 2 or more survivor escape.
That's all they would have to change. That way keys only use would be to reopen hatch if the killer closed it. Keys would still have a use but it wouldn't change the entire game. That's how mori's are now. They can be a little helpful to maybe avoid a ds but still not game changing.
All this being said I would be happy if they just didn't spawn in chest. Let me know what you think.