To explain the scale: I am always fascinated by the way societies moved on when they scaled up (from tribes to cities, to nations,...). It's sort of obvious, but when we double the amount of people, we get to do more. With the internet we got to connect the whole globe but transmitting "information" is still not perfect.
I always think of ants and how they can build their houses with zero understanding of what they do. It just somehow works because there are so many of them. (I know, people are not ants).
In that way I agree with the original take that AGI or not: the world will change. People will get AI in their pocket. It might be more stupid than us (hopefully). But things will change, because of the scale. And because of how it helps to distribute "the information" better.