This is not about you but I got attacked by an army of Boruto ( the series ) fans for saying Naruto was super nerfed without Kurama in reddit haha.Who said there was no nerf?
It's incompetence from the writers, you can have OP characters presents without making all the plot circling around them or making them incompetent, it's not the first or last series with OP adults as side characters.I don't believe Naruto/Sasuke needed to be nerfed at all BUT I do think it is actually good they were for plot and writing purposes.
Karma is basically becoming an Otosuki God isn't it? That means they have the full power of a God plus their original powers on top of that thereby being something greater.
Naruto and Sasuke were only touched and granted power by a half-god hybrid. Plus they are reincarnates. Not even the real thing.
So in my head Kawaki/Boruto were set to surpass them originally anyway but the problem lies that in order for them to reach their peak a lot of bad stuff has to happen. All that bad stuff won't go down the way the author wants because of Naruto/Sasuke always getting in the way. People are constantly annoyed how Sasuke keeps losing chakra and how Naruto is dumbed down fighting wise. So they nerf them and BOOM the kids (i.e. next generation) have to take over. Makes perfect writing sense even if the fans don't like it.
Heck Naruto was always stuck in the hokage office and Sasuke was MIA and they did not take advantage on that, in fact they made the entire plot to be about Naruto because they made Kawaki be all about him and ofc Sasuke has to tag along, the fact that Naruto has as many fights as the MC says a lot.
We could have had normal grounded plot with the kids until shippuden even after the Momoshiki incident, having them outside the village and deal with normal ninjas, growing by themselves, but no we got directly another otsutsuki and kids dealing with villains that should speedblitz them in 1 second.