The problem is that we're back at square one. Our item level has increased but so has the hp of the old mobs.
By increasing everything by 30% they're effectively item level scaling the entire game. Patch 8.1 is effectively patch 8.0 timewalking, patch 8.2 is effectively patch 8.1 timewalking, patch 8.3 is effectively patcg 8.2 timewalking, etc. It gets to a situation where you just go "what's the point?".
Compare that to previous expansions where there was none of this scaling. It was fun overpowering old content. You saw a tangible result from all your progression. Now? The feel of everything is going to be the same as it was day 1 of progression, with the same content. It's like all my progression so far led to no tangible difference in gameplay. Not my cup of tea.