On a technical level they already did crowning an interim champion. In my opinion going out injured as the champ just gives you a "golden ticket" (as Sonnen would call it) when you get back... you're in a title fight right off the bat, but you facing the man who took over the yard while you were gone. In GSP's prefight interviews to the Condit fight, he claimed he saw Carlos as the champ, I agreed.
I never view intern champs as the real deal... I don't think many do either... GSP is just such a nice guy, he's never gonna show any disrepsect to someone as classy as Condit imo