My NRS kayak fishing vest is my PFD. I wear it on all but the smallest lakes on the warmest summer days. While I have no idea if this vid was staged or not, it does illustrate several things... .......A half-assed, improperly worn, PFD does a pathetic job of keeping you afloat. ........Don't depend upon people for help; they may not be willing, able, or even available. ........A small recreational sit-in-side kayak is a dicey fishing craft, and an ungainly beast when swamped. A sit-on-top provides a significantly better margin of safety. With a SOT, in the unlikely event you unexpectedly exit the craft, your main issue will be crawling back on board a high and dry kayak before hypothermia renders you too weak to do so.