It is being changed, so people will decide if they enjoy leveling like normal people or not. If people stayed 110 just to jack other player’s XP, then yeah, that’s abuse. If you stayed in 110 for “legion content” then… well you’re not being honest because…
Look Legion content was destroyed in the pre-patch for BfA. Almost all of the fun systems it had are beyond recognition or simply disabled. Clearly Blizzard wanted Legion to completely go away, unlike other xpacs like MoP and WoD, which are still useful (for good or bad, that’s the truth).
Legion was hit so hard that they are doing you a favor to not allow you to stay in it. It’s bad.
If I were in charge of this, I’d actually nerf expeditions and questing hardcore and buff dungeons - they should be encouraging people to dungeon more imo.
And scaling is not broken - I have 7 level 120s and every one made it there really, really easily.