I think so much of it is a reflection of how the majority of Hollywood has really forgotten how to make quality mass entertainment.
But this is pretty clearly untrue. Hollywood is probably better now at making quality mass entertainment (which I’m taking to mean large-scale blockbusters since most studio product is intended to appeal to a “mass audience”) than at any time in its prior history. The last 20 years of major-studio blockbuster filmmaking has considerably more legitimately well-made and affecting films than the '80s and '90s do. That Star Wars turned out a bad movie isn’t really a reflection of anything but Star Wars being Star Wars (Star Wars has never batted 1.000, and it’s sort of unreasonable to think it should). Not to excuse the film’s quality or make apologies for it (I didn’t like it either) but I don’t think The Rise of Skywalker is really a reflection of anything but it’s own production, it’s not part of a larger industry trend. If it were, it probably would have stuck the landing in a manner much closer to Avengers: Endgame. Which, as a reminder, was critically acclaimed on top of becoming the highest grossing film ever.
Also, you didn’t mention any satisfying elements to offset the negative ones. Did nothing come across as satisfying?