people need to realize, though, that the konami ban list is basically a set rotation. it doesn't attempt to balance the game, it attempts to keep new sets relevant without having to solely resort to power creep (though power creep is still a problem, obviously).
there really isn't anything wrong with this. the game isn't any worse than it was during infernity/xsaber format, which itself wasn't any worse than ddt format, which itself wasn't worse than t-hero format, etc. nobody seems to complain that mtg does set rotations, so i don't understand why it's bad for konami to do so (other than the fact that it being paraded around as balancing tool is a bit disingenuous).
the game and its resource systems are fundamentally broken and no card limitations can fix that. even when power plays are limited, the game can still be decided turn 1 in a lot of cases. look back at 2005 or 2006, when most broken shit didn't exist: if you go first and set magical merchant sakuretsu armor, they swing into your saku, and you flip merchant into a resolved thestalos, you will win that game almost every time, because fewer power cards means less comeback potential. more recently, whatever debris format used hamsters, if you go first and have warning/hamster, and you resolve your warning, you will almost always win the game.
if anything i think the game is in a pretty cool state right now, a lot of stuff is viable and a lot of stuff could easily win a ycs given the right/right number of players piloting it. my only issue is with spellbooks, but that's not because they're overpowered, it's because they're overpowered and outright countered by EEV, which makes the format stupid. either you run spellbook, or you run an EEV deck, which wins if you draw/resolve EEV and loses if you don't. i could go on and on about how poorly designed yugioh is in basically every aspect. i still enjoy playing it, though.