If he could prove he was graduating in a matter of weeks then that’s fucking ridiculous. I was accepted to grad schools before I even passed my final undergrad classes. It’s just on a conditional basis, but nothing changed when I actually got the degree. Besides, there’s time between the last classes ending and commencement, then months between commencement and getting the actual degree in the mail and your transcripts being updated.
I’m hope he feels like he dodged a bullet.