I agree. The post was just echoing the sentiment the Mustang pilots had toward the P-51 and it's liquid cooled motor and other associated technical problems they had flying over the "continent".The Hellcat was undoubtedly generally more resiliant to ground fire
but 'a man with a rifle' could equally put one through the canopy of the Hellcat and kill the pilot; would one be considered a lack of resiliance to small-arms fire and the other pure luck?