Latest hot take is that TPC is generally just an(other) insufferable corporation that is substantially out of touch with their customers. They have such a narrow definition of how to play the game and it shapes their design choices because they only play by that one option. This explains things like the EXP Share change, the lack of bigger battle facilities and the linear story options, amongst other things.
Out of curiosity (I know this may sound offensive, it isn't a personal attack), you figured it out now?
I've been advocating for basically most of my time on these boards that TPCI sees Pokemon as "a story game for kids that happens to have a competitive scene that apparently attracts adults" and has never had any interest in any sort of challenge (see what I said in the other topic, they always said "you make their own challenge" as why there's no difficulty option).
The removal of postgame facilities (and/or hypersimplification as "just grind these for BPs" in SwSh) was just another of the main proofs of that line of thought.
Honestly, if Twitch didn't make E-sports explode as an actual profitable path, I doubt we'd have ever even seen official streams of the VGC nor any attempts in the game to make the competitive scene more accessible, and the games would have just remained as what they are meant to be, a way for kids to know the new pokemon and have fun with them.
(Not saying I *agree* with their view, but all of this has been pretty obvious to me for years and I've usually always said to anyone denying them that inhaling too much copium is dangerous, because denying that these games have always been designed with only young and possibly "very dumb" kids in mind is kinda delusional by now. And after all, they are also the biggest chunk of the buyers, and they are the kind of player that finishes the game and never touches it again, and hardly ever cares of facilities, postgame or challenge runs)