It isn’t about hating players, it is about two things really:
Balancing the class
Opening up a new meta
If you don’t do #1, you’ll instead have to balance all of the monsters across all difficulties which is a far more miserable task which could easily end up in a poor state overall for all players.
Players want #2 (see all threads that complain about “build X again!”). This requires making some previously solid builds less solid, new builds brought up.
If you’re going to say “well, why not just make all builds equal” my answer is this: no one has ever been able to do this unless the skills (and or classes) or homogenized. No one wants that at all.
I don’t think many people play D4 for “the challenge” as it’s simply at present not that sort of game.
It then would seem to be about finding cool stuff. My question would be then why is there so little cool stuff and why are the drop rates also so genuinely terrible for what little there is of it?
Btw I tested the PTR more than usual and did a Pit 150 with Druid, a Pit 120 with Sorc and a Pit 90 with Rogue which would seem OK but… I also determined that there is next to zero chance of me having access to the kind of gear I was using in the PTR when S10 goes live.
I doubt that he meant “self found and solo” when he said “solo”. Sounded like he was reffering to solo play vs play in a party disadvantage, but I may be wrong.
This tells me you didn’t read much of the patch notes or pay attention to the information given about the PTR. If you read the bullet points you miss out on 95% of it all.
They never mentioned anything changing except for chaos armor, powers and hordes. So it goes without saying that is what your experience would be.
New class comes with the expansion. Nothing or no one has said different. Why you thought it would be there is mind boggling. It has not been confirmed what the new class will be. There are “data mines” that claim but no one will know for sure until it is announced.
I actually did when I started S0 and S1 but after that I learned I was wrong. As much as I hate to admit it, I was wrong with my expectations back then.