The house of cards that Kevin Feige built collapsed a long time ago. There's a reason nobody's been able to replicate the shared universe model: it was all illusory.
I'd argue that the novelty of seeing something 'new' happen in cinema was another part of it. People don't have the time or energy to check out 32 streaming shows, a movie every 2 months, etc. like how Marvel has become.
The MCU succeeded because it was a series of good films featuring charismatic actors, not because of any plan of Kevin Feige. The top down planning of the first ten films was limited to little teasers sprinkled through the films, making it easy for the Russo Brothers to put the pieces together in Infinity War (and even then, how much did they actually use from those films).
I'd argue that there was more beyond the teasers, but as I said, 'bankable names' (ie, the actors) and properties (does the general audience care about Moon Knight or female Thor, Black Panther without Bosman, etc.? From the looks of it, no) and oversaturation.
There was a definite plan with a basic three act story structure stretched out over multiple movies (build up and establish the Avengers, then have a crisis moment (Infinity War) and then the blowoff (Endgame.) It's narrative 101 and there was a lot of freedom in between to fill in shit as they went (as well as luck, I'd argue.)
Disney Wars was a very shotgun, scatter-brained approach and made the mistake of picking no real bankable actors. Daisy Ridley is about as compelling as beige paint drying and she was the fucking lead? The mystery box shit as talked about earlier in the thread, jumping around from a Han Solo movie, to Kenobi to the sequel movies just screamed no real plan. At least with Marvel when they did shit that didn't squarely line up (ie, Guardians of the Galaxy) that shit still was important in the 'main' films.
The only real stuff that didn't ultimately factor in was the Netflix stuff (Daredevil, Jessica Jones, Punisher, etc.) and it was all in its own self-contained universe. Which was fine for a third party property fucking around with low level characters.
I hate that I'm sounding like Movie Blob here, as I don't have a lot of fondness for the MCU beyond what they are: dumb popcorn movies that work on a very basic narrative level.
Kathleen could have masterminded some grand plan for Star Wars, but it would have been shit because she's shit and her "story group" is a joke.
I agree that anything that came from KK would've been shite, I'm just loathe to squarely blame her because of the idiots out there who have demonized her beyond the point of parody.