CO-OP Multiplayer Party Feedback

Joining a party with friends, as fun as it can be, the game experience is overall worse compared to solo.

-Mapping w/ one death no revive is somehow even worse than solo, breaks up the party
-Bosses are awful
-important telegraphs and effects become visually lost (expect this to be fixed though)
-Loot is somewhat higher quantity it feels like however, it's split between more people so, i guess not worse or better, sometimes feels worse though with the random allocation, but probably the least of the issues
-Campaign you can't join the other players instance or even see it sometimes but that seems like bugs more than features
-Lots of small things that would create better immersion like being able to see the other players Atlas, spectate them on death, inspect their gear, stuff like that

I had gotten a couple friends into POE1 but one of them quit bc CO-OP admittedly wasn't good back then, I eventually quit bc the way the melee skills worked i only really found one of them enjoyable to fight w/. Third guy quit shortly after bc he didn't want to play a game by himself.

Is the design idea from a standpoint of like, fear of the group doing better than the solo player? Is it a fear of multi-boxing power user accounts taking over?

These things that deleted most of the social party players and melee players from GGG's statistics, i really hope are addressed with a different perspective this time around.