For me, I feel like the sequel trilogy, for all its flaws, gets a lot of flack and bs over weird nitpicky stuff, or trying to bully the cast because of how their characters were written.
TFA: fairly formulaic, but I felt it was an excellent springboard for future installments, and set up the current state of the world well enough that you had a solid grasp of all the major players and events.
TLJ: Tried new themes and to subvert some of the audience expectations and tropes of the genre. However, in my opinion, failed because Rian Johnson was thinking about audience reactions rather than the characters in the film. Handled much more deftly and brilliantly in Knives Out.
TLS: A reaction to fan reaction to TLJ, tried to cram in easter eggs and fan favorites and OT stuff, at the expense of the overall story. It felt like JJ Abrams had a ton of ideas for what should happen in 8 and 9 and then crammed it all into 9.
It was a real pity, because to me the things that captivated me about TFA never really got followed up on.