I think you're replying to a number of people here, but sir, the feat is a man stopping an earthquake in a place where earthquake magnitude is frequently 7 or higher.
It seems pretty safe to assume the
794,328,234,724,282 J he'd be stopping with a punch does mean he sits comfortably at
7-C. And I don't know if you've ever actually consumed any Baki, but I'll say it a third time: The feat was
not meaningless, and had a clear point at that point of the story to show Baki was naïve in thinking he had closed the gap between himself and his father. Baki is a character that learns a lot throughout the series, and that was one of his harshest lessons.
I don't think I could accomplish almost any feat on this site as an ordinary person in real life, I'll add.