I mostly agree with Mr. pensioner. Sadly, we have to expose ourselves so much in today's world, and ambition has become one of the virtues!?! Whoever runs uphill, let him do it, after all keep the self-aggrandizement about personal achievements to himself, but then a sprained ankle won't seem so important, right!? Otherwise real mountain runners (almost) never run in the hills, but mainly on athletic tracks (intervals, intervals, intervals), or on varied forest terrain (fartlek), just running uphill isn't the best to practice due to excessive exhaustion, muscle acidification on descent and loss of speed. Whoever runs uphill in the mountains does it for himself. But inferiority complexes or self-affirmation many solve this way too, i.e. by posting personal achievements on forums and blogs.
Anyway, Stangl is primarily a professional guide and has plenty of time to do what he does. In front of the camera everyone is even more motivated. Also dragging and carrying a 30kg tractor tire is easy to film, or super fast uphill run - with that pace he'd beat Wyatt! In short, footage in front of camera is one thing, reality another. Behind it are strong sponsors. At the same time Stangl can't be a thorn in alpinists' side, because he doesn't threaten them in anything. Namely, he achieved speed ascents on the highest peaks of 7 continents via classic routes, which as we know, we no longer consider alpinistic feats today! On the route he ascended Mount Everest we meet commercial parties with rich guys who don't know the ABC of alpinism, or rather JIM guides put on crampons there for the first time, which they hadn't even heard of before!?
Such videos of extreme athletes can have positive or negative influence on viewers. Depends on perception and intelligence quotient of the viewer. If the latter is too low, Stangl quickly gets imitators...