People are getting hung up on definitions of extraordinary. The thing you need to understand is that US immigration is a political blackhole. The main pathways to immigrate to the US are family, misery (asylum, refugee, tps), or luck (diversity). Employment or economic immigration is frowned upon and visas like H-1B are limited and exploitative and still ultimately politically unpopular as the masses don't want to compete. So, that leaves O-1 as an escape hatch for a basic economic immigration visa that won't rile up the masses. Afterall, a chud does not reasonably believe that an influencer or a pornstar is stealing his job. So it goes.