Platforms have realized this long ago, that as info explodes people pay attention to the easiest things to pay attention too not the hardest, so they move resources to designing things like reels and shorts and tweets etc etc. Every earnings call they gloat about how shorter form content is exploding and how thrilled they are about it.
The long form stuff only holds attention of the majority if you keep throwing Novelty on the table every two sentences.
Platforms are basically running an animal domestication program, where people have been rewarded with high rep and status for extremely low cognitive work.
So that entire group that has benefited doesn't see any need for nuance and depth in anything. "Cause look how many likes, clicks, views and followers I have accumulated without it"