An instructor of mine once said that it’s a lot harder to be bad at animating than other CG areas.
That is, a mediocre model or so-so texture job doesn’t irritate our aesthetic sensibilities as much as poor animation jobs. There’s good animation, or there’s bad animation; there’s very little gray area.
So, either people just decide “forget this!” and persue other topics, or people who are learning are hesitant to show obviously poor work. Who knows.