It's interesting that the researchers chose example problems where the minimum norm solution is the best at generalization. What if that's not the case?
Yea, this is what’s really going on here and feels like it’s been shrouded in language to make it seem more grandiose. That being said, I would believe generalization to occur from minimum norm solutions in some sense, but whether that corresponds to minimum norm weights or not is a different question, and one you probably won’t know a priori (not to mention even knowing which norm to choose).