There was ton of preproduction done by Lucas for the sequels. Disney trashed everything (not really, but almost). Then rushed it, without a cohesive vision. What a shitshow with incredible and amazing moments, but what a shitshow.

Imagine what it could have been with Filoni and Favreau as a heart. The same filmmakers would have killed it with them guiding it all, and Lucas would have been on set half of the time.