"To be perfectly fair, Fritz Weissner, a German emigre to New York and incredibly visionary climber, basically climbed K2 in 1939 in pretty similar clothing. It's not the clothing, it's the person inside... "

That is correct. Clothing and equipment would not have been the deciding factor for Mallory and Irving. They got close enough to the summit that the lack of modern gear would not have been the issue. Maybe some day they find the camera and hopefully the pictures are able to be developed.