Do you mean YT algo does not recommend animated videos enough?
From my experience I don't watch as many, except may be crash course history, and therefore don't get much reco either.
I think it's rather that the YT algo promotes channels that put out a steady stream of content more than channels that put out content once in a while. Animation takes a lot of work and thus time. This makes them much less likely to put out a lot of content.
Its also the fact that the payments are fairly equal. One animation that takes months to do gets as many views as someone playing a videogame for an hour.
