Mythic raids already had easy access to tier, sole access to the highest ivl loot in the game, and much faster gearing after the first two weeks.
M+ is limited to one piece of mythic quality loot a week from the vault.
Raids are not limited in that way, The loot from the raid itself is an addition to the one piece a week from the vault.
M+ has easier access to inferior loot that will be replaced. This is true.
Heroic raiders often have issues with mythic+ because they can outgear the raid. And if that is the case, then you belong in mythic raids.
It’s your own fault.
If you’re good a enough to player to play minor league baseball, but decide to play little league with 8 year old kids … and then complain it’s too easy. Well bud, that’s on you.