But he has none at all for extended periods
Quite.
This is nuts compared to the utility stuff I have been involved in as the ground guy with Bond/PLM-PDG/Specialist on a variety of jobs in the Highlands across the last 35 years. I cannot imagine why one would not organise to avoid having the aircraft remain in the hover that long. All that ratchet strap stuff: why would you not have a quick release system for that retainer? Benefits the ground guy too because he is working at height. Bonkers.