Very sad news indeed and first of all would like to offer condolences to all the crew involved
As for the video......hmmmmm, seems like he was more interested in putting on a show than doing his job. Hoisting 101? Yep, hooking up is usually a good idea, as has been mentioned the double thumbs up is good when your team scores, not needed so much during hoisting evolution.
Im personally not that familiar with the "sitting" stoop, but know when we used the older version, the tech ALWAYS kept his legs and one arm around the person, to prevent him from reaching out at the A/C and ruining everyone's day.
In this type of scenario, I always liked the basket....easy to use, very hard to fall out of.
Just my 2 cents worth.