Has everyone forgotten that Pope's opinions aren't canon law- that papal infallibility is dependent on communion among the bishops and magisterium of the Church? Pope Francis "has not changed in the slightest the teaching on mortal sin" but  he has arguably misapplied that teaching, or has allowed it to be misapplied by others, to a situation wherein it simply does not apply (Canon 915); and so caused scandal. Just like the rampant abuse of Vatican 2- misinterpretion by others is what Burke seeks to clarify and I commend him- he has not stepped out of line by any means!