What better rewards though in the case of WuWa? I see the same things as rewards between even higher lvl bosses. Beyond world lvl 5 and even at this stage, all echo drops are S ranks 100% of the time, so what exactly further world lvls has to offer and what's even the point? I'm talking about the open world of course, not the endgame which requires high lvl characters. Are you getting purple and gold mats instead of green crap from enemies? Cuz at the world lvl 5 you're not getting that still and you're just 20 lvl below max lvl cap and you're not getting that via mats challenges too - only green and blue crap.
There's like no point at all in auto leveling in the open world and in the case of WuWa, beyond S rank echoes you're not getting anything good and even your data bank is at max level, so you're not even lvlg it up anymore and unlocking new echoes for the echoe pool (which will expand with each new update, but not by much). There is a way to lower the world lvl for 12 hrs and I think this is the way to do it for me when I'll be hitting new world lvls and after lvlg characters. I mean, you can ignore enemies and all that, but you have to fight them if you want to open locked chests and stuff you can't get otherwise, so you can't ignore enemies all the time even if you don't want to deal with them.
Idk man, I just don't like auto leveling in general unless it's Diablo, but in the case of Diablo it's a lot more fun cuz you're getting a shit load more stuff you can do to make you stronger, craft and shit than anything WuWa has to offer since launch and now, so I don't think that it's even fair comparison