Well, he did hire whoever hired Rian Johnson to write and direct The Last Jedi, so...
He shares a (low) percentage of the blame. It's mostly on Rian Johnson, though. He sucks.
I want to put Episode VIII behind me, though, and stop talking about it. I've person_without_enough_empathyed so much for so long. I just want Episode IX to be good. I have trust and optimism in JJ Abrams. He said that he's going to bring a lot of the first 6 movies into this one, like he did with The Force Awakens, but he also wants to do a lot more original things.