Keys are uncounterable and need to go.
In high MMR if a SWF has a key no matter what happens or what you bring the game will be over if they get the gens down to 1 generator, there is nothing you can counteract that even gimmicky perks that you are forced to bring just to combat a key do nothing if they just drop the key down somewhere and wait until one of them finds hatch.
I get tons of matches with people with keys and its awful, I never had a key in nearly every match be used, but people are just getting so competitive unfun, what tends to happen is if they are down 1 person and have 1 generator left the entire team is going to be looking for the hatch, it's so awful when you finally secured the last 3 generators then notice the hatch open and you realize that you cant do anything about that.
It's the same thing with people complaining about having to bring iron will to face against the spirit, but the sad fact is what killers have to combat keys is very very easily countered itself, so in the end, keys just = free escape no matter what.
Even other means of getting survivors have lots of counters themselves so you are just going to have setback after setback and the only means of victory is if the survivors don't find hatch which is impossible not to, 3 people on comms is too easy not to fail.
Like I wouldn't be this unhappy about it if they weren't constantly bming the entire match, jumping in lockers filling my screen with notifications, and just being annoying, a coordinated SWF is only fun for the survivors themselves. Especially when you are using non meta builds I was using bbq and beast of prey because I wanted to have fun without using meta perks and beast of prey for a killer challenge.