That’s because AGI, like a lot of terms, has no meaning besides what each individual subjectively projects onto it.
IMO, AGI is literally no different from ASI, though people think it is. Like, Imagine you have 1,000 generally intelligent humans working for you (which nobody is really) and you were to point them at your pet project. That would be amazing!
You must have some notion of an argument as to why all the varied attributes of different humans should align to all be "average" in some specific human.
O/wise you'd be peddling sloppy trite aphorisms that don't bear scrutiny.