Indeed.  The man is committing grave sin, one upon another: heresy, scandal, disobedience to the Church.  (I'm just talking about the observable, public stuff, of course.)  He is on the road to Hell, even were he a layman, but since he's a priest, he is in great peril.  

That said, I'm not holding my breath for Francis to rebuke him or excommunicate him, though both are called for.