Isn't how this works. While tiers are different and not all are equal mythic raiders usually in most cases find grinds tedious. They will do them but most mythic raiders want to go back to raid logging.
These power gains are also not required for trivial content like heroic were you are going to run into soft enrage timers then hard enrage timers without them.
So you should add " these systems are not necessary if you only raid heroic"