Skills
Actually there are many many extremely skilled pilots out there. My most demanding wasn't doing split ar$e cloud break 14 visual left hand circuit 28 with final turn completed at 400ft and landing config by 300ft in foehn turbulence MD80 but tugging in a Raylle previously flown by Bleriot at a French mountain site. Observing harmonic limitations on a lycoming. Drop cable below 50ft..left 35 degree turn..pull up to 200ft..roll right..slats ..flaps..side slipping right turn....bank off..throttle closed ..kick off drift..flare..keep nose wheel airborne due nose wheel shimmy..neutralise trims ( to keep straight).. and there were several amateurs who could do it with more grace and less sweat than moi.
don't criticise it till you try it