The first ascent of King George was in 1919. The second ascent wasn’t until 52 years later in 1970! I’m sure this mostly has to do with the demanding and remote approach rather than the climb itself. There are enough possible routes and interesting lines on this mountain that I’m sure if the approach was easier and more accessible there would be many more ascents than there is today. Pretty much the only people climbing King George are either the type who really like big, remote terrain or are chasing the 11,000ers of the Canadian Rockies.