Even if you miss the meta humor here, the sudden change in speed/tone of the strip at the end is kinda hilarious in its own right.

Dunno, these 4 panels have so much interesting… Energy? At play beneath the surface. Starts fast, silly and familiar, you think you know where it’s going mid stream, and bang! Hobbes says the thing that shatters the whole flow that you yourself bought into!

This is brilliant! Talking toy tigers - no problem. Talking dogs, though, is clearly ridiculous!