It is an incredible accomplishment, again, I don't want to detract from that.
It is similar to the fact that people who were born and have lived their life in the higher elevation of the Andes of Peru can not handle physical exercise at sea level. It could kill them.
I just watched a YouTube video last night about the first two guys that tried to summit the Eiger by going up the North Face. They died trying. It was eventually successfully climbed in 1938. This is the route made famous in the 1975 Clint Eastwood movie “The Eiger Sanction”. It is also where the clothing name comes from.