Not too far fetched Art,
Enjoyed the video. the drone idea. There are those on the forum, one in particular, a 34 foot Nordic Tug, who fly a drone quite often. One could see a active drone mentality aboard with a plan of flying a line to a person overboard. I am not drone orientated and the preparation may be to burdensome to be effective, yet a tool is a tool.
Over time I have as many have, added a swim step ladder, a hanging down line with knots, and have adapted my block and tackle for the inflatable in such a manner to assist in lifting a person. I am not sure any of my crew is capable of yarding a soul out of the water with that system more it is to assist the party in the water hopefully, to make it up and out.
For sure, in my aging years, the wearing of the float coat while anywhere other than the cockpit is now a standard rule.
I designed a folding ladder for the forward bunk area escape hatch to facilitate access to the anchor via a inside route rather than walking the narrow side decks. This process is mandatory when single handing as a promise to the wife. If somebody is with me a outside route is okay.
In any case, as I approach an anchorage in slow speed, I drop the ladder, unfurl the hanging rope prior to either approach to the anchoring process.
Funny, not too many years ago I'd scurry about without a thought of personal safety.
Al-Ketchikan