Weird shit or just different shit from the shit you usually watch? Wallace and Gromit is excellent, my kids love it they also love this
If your kids like it then whats the problem. It gives them a different perspective of what funny is or at least from what you consider funny is, you see what I am getting at...difference is good, 'same' is shit. Considering your children can see that and you can't means you have been blinded by mainstream, influenced by 'same', your horizons have been limited by 'same'.
Consider Japanese cartoons, or French cartoons or any cartoon that isn't american and you will see a different thought process at work, which is good esp for kids imaginations...
I watched this with my son and all I got was questions then more questions then more questions...which is great! He didn't leave his brain at the door unlike with most films that serve everything on a plate for the viewer