There's a rule about really good, effective satire; it should punch upward, at the establishment and those in positions of power and influence - the royal family; the church; politicians; celebrities - to mock their pretensions, prick their pomposity and question their authority. It should never punch downwards at the powerless, the weak, the vulnerable, the helpless, the voiceless.
Some people think that the CH cartoon was doing the latter, mocking a dead toddler. I don't get this; it's clear to me what was being satirised and it wasn't a dead kid on a beach.