He’s different IMO. The others in that list have/had major flaws, but Mainoo appears to have the full package for his position (to my uneducated eyes) and justifies the praise…for now. It’s all just potential of course, but I don’t see it in Garnacho for instance.
The good news is that there’s always a tipping point, and rule changes soon follow to improve the spectacle.
That’s how we got the ever-evolving offside rule, the backpass rule, tackles from behind outlawed, the list goes on.
In terms of quality of football, World Cup 1990 was a nadir and triggered a bunch of changes.