I would've thought the same thing when Marlon Brown went to UGA, which was:
"Dang! I hope he doesn't kill us when/if we play against him. Sure coulda used him here, but oh well, we got a good signing class without him, so hopefully the other guys step up."
I wouldn't have turned it into sour grapes at all. I never thought for a second, "Marlon Brown's no good anyway." Because if he had a second chance and wanted to come to UT, I'd welcome him with open arms.