not sure what happened
I flew choppers for 10 years and did many similar "return to target maneouvers" thankfully without this result, I have to think he had channelized attention for a second or two (maybe looked at the van or pers on ground momentarily) which led to his miscalculation of turning room/remaining altitude. Thankfully - no one was hurt, lucky !
BTW - that is a nice Vette - would like to have that one !