I understand the frustration with the superteam narrative, but just take a look at a list of NBA champs by year:
https://en.wikipedia.org/wiki/List_of_NBA_champions
There have always been superteams in the sense that power/ talent has always historically condensed in just a handful of teams.
Does it matter that players are now taking matters into their own hands to team up now? I would argue that it doesn't matter in the grand scheme.