If you had told me 5 years ago that there would be a single AI system that could perform at this level on such a vast array of standardized tests, I would've said "That's a true AGI." Commentary to the contrary feels like quibbling over a very localized point in time versus looking at the bigger picture.
there are many people, many opinions about the bar. But formal definition is the same: AI which can do large variety of tasks performed by humans. So far we are still not there.