People clearly had fun with this, and I don't want to detract from that.
But I'll be honest: big animation collabs like this are becoming super oversaturated and just no longer carry any spectacle. Some of these weren't bad, a few were good, but I question if there's really all too much people will remember from it.
I would have frontloaded a lot more of the better animations instead of sticking them closer to the end: first impressions are everything, and the impression I had while watching the first few minutes was that this was just going to be extremely low-effort. Obviously that wasn't true, and there's a lot to enjoy if you stick around, but when people have increasingly low attention spans, you need to grab people's attention immediately and keep it (which is especially true for a 30 minute cartoon).