Did you even read what Müller has said? "I do not see any contraposition," undercuts the position you describe. He believes AL is compatible with the traditional teaching, and he has said this in ways that support the Pope and oppose the 4 cardinals' formulation of it. 

I can understand why you identify the traditional teaching with the 4 cardinals, but Cardinal Müller has been clear that it should not be. You should not ignore this. He was at the meetings when the German bishops worked out this understanding of our tradition, at the synod when the the bishops of the world endorsed it, and has been close to the Pope while AL was written.