Do you believe Ed Peters to be infallible? He has been known to change his mind; just like St JPII did on altar girls.
No, I do not think Ed Peters is infallible. I am not citing him as a “argument from authority,” but on the reasonableness of his position that if there is not direct, explicit, incorrigible refusal of a doctrine, there is not formal heresy.
Papal scandal, yes. Pastoral malpractice, certainly. Material heresy, maybe. But not formal heresy.