Very accurate summation with the obvious backing that many involved in the sequels were successful in the industry due to their creation of long running episodic series from numerous media platforms. Series that were long running due to online fan involvement in the story writing of upcoming episodes ( think LOST or the theme of the movie about a series... Dave). Online communities voting for outcomes like that ultimately took the initial creative genius of one writer and relegated it to the trash heap while attempting to paint a picture by allowing 10 million people to all put one brush stroke each on the canvas. I hate to be so corny but it was written like the TV series LOST, in space.The Lucas era came from one guy's mind and it had been written decades ago (at least some basic framework). That lent the whole franchise a feeling of realness. Like it was ancient texts about some world that was all out there existing somewhere. And it had a coherent over-arching story in some form. It didn't all stay consistent but there were some strong basics.
The Disney era broke the spell. Their new series didn't mesh with the existing story very well. (Never mind the continuity details. I'm talking about broad themes & character evolution.) In fact that first one, TFA, was the only time the ST felt like they had a plan at all.
In the Disney era SW does not feel like sacred texts anymore. It FEELS like an episodic series being written on the fly. In the back of your mind you know the studio will twist & turn things any which way to keep the movies coming. Like a mediocre Netflix TV series. Or Fast & Furious. It took the wind out of the whole franchise's sails.