There's no buff for being in a party (in the base game, playing with NPCs gave you a small triboost and playing with other players gave you a slightly bigger one, incentivizing playing with other players instead of soloing) and without FUN, there's no longer as much of an incentive to rez other players out in the field (obviously Urgent Quests and gigantixes still require you to rez others) and of course the game now actively punishes lower level players for leeching off of harder content and content is more heavily gated. Which to be fair, is probably for the best though. I really don't have an issue with this and I'm not even a hardcore player, somewhere between casual and avid really. Though it's for that same reason that I don't really prefer it either.
I'm not saying this has been a problem mind, I'm mostly just pointing out a clear difference in design philosophy. I think a lot of old PSO2 players probably still act the same way out of habit or are just generally better people than the healers in FFXIV "whose subscription you do not pay" (if anything FFXIV needs an incentive for that far more than NGS lol) and I have been rezed randomly out on the field on occasion though with a bigger open world that is not always the case but with photon dashing and ryuker devices it's never been that big of an issue.