Moris and Keys were never equals
Moris have ALWAYS been stronger than keys. Period
The only counterplay to a Mori is "don't get caught" and even the best players get caught so..... that's not counterplay.
Keys on the other hand have many work around and more conditions to use. ALSO, they WILL be changed, but they aren't as pressing an issue as Moris were. So it makes sense to change them at different times. The bigger issue was changed first and that's the way it should be.
Eliminating a player from a match in less than 60 seconds should never have been possible and it's small pp energy for people who just insta tunneled and one hook mori'd people