That so-called "point" proves thoses of my own which I just outlined.
But "protestants" are not compelled to "defend Luther" as much as RC'ers would like to have it be so -- or force them into doing so, using cherry-picked, quote-mined commentary to try to make some case against Luther -- instead of examining theological principles and differences in more neutral fashion.
I think I've seen this all play out on these pages before -- including the accusation the Luther was too scrupulous -- and therefore mentally unbalanced.
Others argue he was too much of a libertine -- and point to his confessions of his own sins -- saying as much as "see there? who should listen to that sinner?" and so on.