^^^There is a lot of what you said that I completely agree with. So much of the sequel trilogy was needless nostalgia. I wanted more Rey and Kylo and less Palpatine and older characters returning.
To bull's post, Kathleen Kennedy gets the blame since she's the head of the company. It's not entirely fair but she does deserve blame for the issues with the production of these movies. Each movie outside of Last Jedi had issues with the directing, writing, editing, or producing. Where she made a mistake, and it's been said on here before, was not having one vision running the entire sequel trilogy so that it had a sense of continuity. Handing off the writing from one person to the next made the sequel trilogy clunky and a bunch of 180 degree turns. It's really sad that there's a competing final movie script out there at all that seems closer to Last Jedi and almost more of a fitting farewell to the series. It shouldn't have been this way. This sequel trilogy will probably be remembered as a missed opportunity.
The ultimate culprit though, IMO, is Disney for their rigid every other year release schedule. From pushing Solo to May instead of leaving it to the following December to not delaying Rise of Skywalker till the story and direction were fully fleshed out. The original trilogy was 3 years apart for each release. The prequel trilogy was also released 3 years apart. Even the latter, as poorly scripted with the character dialogue, have more cohesion than the sequel trilogy. So yes, I'm fine with them not ramming out a new series with Obi Wan given it is a very delicate story with a beloved character and serious canon limitations. The entire idea of him being on Tatooine was to watch over Luke. A hermit's existence till Luke came of age. So yeah, please take your time and write something great that makes sense for the character we see in A New Hope. Then get completely away from the Skywalkers, Empire, Republic, etc. Let Rian write and direct some new stories, unburdened by the Skywalker lineage and need for nostalgia. It really says something about how I felt watching the last movie that I haven't seen it again or even desired to see it again. And I watched the others multiple times in the theaters.