With mangolds flick they have eons of time to work with, yet everything else has to repeatedly target everything they have aleady done. Go to a new space.
One problem with the pt was you knew certain characters were safe. Nothing was happening to obi wan, anakin wasnt dying, etc. Trying to suck up to fans w something like a true thrawn trilogy is the same thing. We know everyone lives, etc.
You cant do,scenes like in gogt3 where nearly everyone had a moment they might die. The stakes are low when younknow the outcome and who lices, dies etc. They have perma screwed the ot characters. You cant redeem destroying their stories without undoing the st itself and they arent going to do that, but it fixes a lot i suppose if they do something that fits in the middle and we find out the st is in the sw equivalent of the kelvin timeline. And no, they wont do thar, so all the more reason to go to unknown timeframes where arent beholden to anything.