I mean, this is Explain Like I'm Five. I feel the goal would be to dumb it down as much as possible and I feel that this is a very good, if somewhat cheeky, way of explaining the very very basics of the Fediverse.
Is this missing a lot of nuance? Of course. But everyone having a bunch of different spots that can't be held to some "bad guy's" standards while all those spots are still able to share and talk to each other, is a very good way to explain to someone who has no understanding of instances and servers and especially if you needed to explain it to a 5 year old.