In Scotland they have a saying that a gentleman is a man who knows how to play the bagpipes, but doesn’t. I think a lot of these super-hard-to-learn frameworks are just that, men (primarily) playing the bagpipes just as loudly as they can, often because they couldn’t get the instruments they already had to work for them.
I’ve seen people go to web workers before reducing the number of nested loops. I think React itself is from people who didn’t properly learn AngularJS. AngularJS exists because too many people couldn’t write performant, secure ActionScript and pissed Steve Jobs off. And so on. People constantly churning tech stacks because they couldn’t properly learn the previous one, and then it becomes self-perpetuating because the old stack falls out of favor when it gains a reputation of being slow and insecure (b/c of all the people who don’t use it well) and then there’s pressure to learn the next one in 5 minutes, which of course means most people don’t use it well.