Yes...but you aren’t an official member of the class of XX until you report for iday. I used to say until “take the oath”, but that was different last year BC of Covid. I believe their official date is when they reported. Which was staggered. My plebe never took any oath.
‘24 had at least one appointment revoked that I know of. So it does happen. BTW, all colleges will ask for final transcripts. It’s not unique to a SA. You have to officially graduate, and show proof (transcript). Also for merit scholarships, etc. Same with a SA...you have to have that diploma to attend. And also the grade part.