Its all content it seems, I have a feeling when they stat and level squished everyone they forgot to do the same thing to the mobs in the game.
Just another note, that devilspartne is in other bigger threads trying to convince everyone they are wrong as well lol, like saying he couldn’t solo legion raid bosses in bfa but he can now …I find that weird because I was doing legion raids pretty easily when I was level 50 but now even mobs take forever to kill in the same raid.
https://us.forums.blizzard.com/en/wow/t/old-raids-no-longer-soloable/676822/646