Have slept on this to allow things to settle and here goes. WARNING: THERE ARE SPOILERS JUST ALL OVER THIS.
So, The Rise of Skywalker was not totally, absolutely, completely unwatchable in the way The Last Jedi was; this was a start. And some explanation and acknowledgement was given to the return-to-life of Emperor Palpatine, unlike the reappearance of Darth Maul in Solo. Again, a start.
The use of the Emperor is a massive problem, though, in itself, and around…