Sure, even though the trilogy has been in development since 2014.
You forget Kylo’s entire character arc, and who the First Order and the Resistance are to begin with.
What else did he do then? Those were some of his few actual moments. The only other thing he did was try to seduce Rey.
I’m glad hes gone too, but without any backstory or explanation? That was a bad move.
Yes, it is hailed as the beginning of Star Wars’ downwards spiral, although I’d argue it began with Forces of Destiny.