Prince's behavior is just more fuel for the fire of the likes of Kevin Smith and George Carlin(who appears in several of Smith's movies). Both Smith and Carlin love to skewer religion. People like Prince(or any fundamentalist) who makes a show of righteousness make it easy for them.
I've never cared for his purpleness(though I do own Purple Rain). He seemed to carry things to excessiveness. Now that he's found religion, he's going to carry it to excessiveness.