I agree but the balance is off, between BC, Wotlk, Cataclysm and MoP and finally WoD and Legion normal dungeons are all over the place in terms of difficulty. Cataclysm arguably being the hardest normal dungeons at the moment at level 80-90 which should be addressed by lowering difficulty in there while making it harder in WoD and Legion dungeons.
Probably need to wait and see how the stats squish handles the dungeons. Not gonna expect a hotfix before that.