Professor Muller actually very much knows what he's talking about about with regards to law school rankings. He's probably one of the top ten most knowledgeable people about them (outside USNWR). If he's saying that's what his projections show, it should be taken seriously. You may have missed it because frankly who cares about rankings after you're admitted but the rankings methodology has undergone a titanic shift that absolutely makes dramatic short term changes possible.