I did a marathon of Futurama a while ago, and I forgot how hilarious it is. Comparing it to The Simpsons is a common mistake made by people who haven't seen a lot of Futurama; they're both different in their audiences and style of humour. Comparing them to Family Guy is even worse, they're all different from each other.
Playing it safe with a joke doesn't mean that it isn't funny, and vice versa. Those videos you linked aren't funny imo, not because it points out The Simpsons' flaws, but it's how the creator of these videos present it. It's obvious they don't like the show, and the punchline is almost always "haha I hate this show" because of it. It's more petty than funny, if anything. A lot of creators these days rely on this kind of humour if they have something theu hate, and it even comes off as boring because of it
Edgy humour is far more predictable than what you make it out to be. You get more cheap laughs out from going with the easy way out and making fun of specific groups of people.