I've noticed a bunch of Youtube channels have really upped their animation game and mastered how to structure/pace their videos. Especially the science oriented ones like Kurzgesagt [1] and Veritasium [2]. It's a really great movement, I'm happy to see it. 3blue1brown definitely played a role in this in the early days.
It reminds me of the way websites evolved around 2005-2010 to start to take design seriously, not just on specialist web design sites but on major news sites and search engines, etc. Part of it was "Web 2.0" and then Bootstrap style CSS frameworks and the maturity of browsers as IE6 died off.