That chopper was stripped to the bone so that one dude could fly in it, with a fuel time of 1 hour. It also landed on the summit which is more flat. Don't think it would be easily and safely able to carry an addition (dead) body that's probably perched on an incline, let alone carry rescuers. It takes upwards of 6 hours to chip the dead body off the ice (if it's been frozen there for a while)