One being the Glasker facemask. Looking at the play 1st and maybe 2nd views in real time looked like a facemask. Then when they turn to view 3 and slow it down it’s clear it’s not.
As watchers we have the super power to see multiple angles and scrutinize a play frame by frame when these things happen in the fraction of a second. Also nice first down graphics with a birds eye view.
Even if the holding call wasn’t holding that ref doesn’t really get the super power to review said flag.