The bright side of this travesty is that now Disney will never make another Star Wars trilogy without planning it out in advance.
For as much as this is championed by fans the truth is almost no creatives currently working at any studio actually does this, and it’s almost never BEEN done, either.
The problem with film series that end poorly isn’t that there was lack of overall planning for the entire saga, it’s that whoever executed the plan for THE LAST CHAPTER didn’t do it well. You don’t need to plan out the whole thing beforehand, you just need to not agree to a bad plan for the last one.
The idea that people who are paid millions to literally create fiction out of thin air can’t come up with a good part three unless someone else pre-chewed their food 5 years prior is kind of weird, and not very much based in reality.
What’s real is that people make bad decisions and other people agree to them. That’ll happen with any plan.