Present-Day Anime Animation

[Koh]

I think it's mostly the visuals and progression of cartoons these days that are way too similar. Breadwinners looks like Adventure Time looks like Regular Show looks like Chowder looks like Flapjack. Then most tend to have a bunch of randomness and not as much plot cohesion, so they're even more forgettable. Especially Spongebob; it went way downhill after like Season 3, and it's amazing it's even still a thing.

If you look at a show like Courage the Cowardly Dog, which I hold to be one of the best cartoons made so far, the artstyle was simple, yet there was still hyper expressionism, a cohesive plot for that episode, and a mix of dark and light humor to appeal to all audiences. Other old good shows like Dexter's Laboratory, TailSpin, Ducktales or Darkwing Duck also had this, though not as much dark humor.