It a Lookwood Hook thought up by Jon on the ladder. It's a variation of the NY hook. It is sold by Leather Head Tools and should start selling soon. www.leatherheadtools.com. I know Jon put a lot of time and testing into the tool (this video was shot over three years ago). The head is great for puncturing, pulling, and the shaft is thicker than the NY hook so that it doesn't bend when tacking a sash. I will definitely be picking one up.
Some thoughts, and a bit of reality; packs, masks, 10-feet higher on a ladder, a 300-pound, truly "dead weight victim," furniture, clothes and debris all over the floor, carpet, smoke, etc, makes this exponentially more dangerous for us and, makes a successful rescue less likely! If the space outside the rescue room wasn't tenable when we found the victim, it may or may not be getting any better while we're in there fiddle f'ing around with this victim. I don't have an answer, I just don't view this as reality. Just sayin'.
The "reality" is people are counting on firefighters to get them out. No one said it would be easy. I know that these guys have trained extensively on this with full gear, low visibility, heavy victims, actual 2 story windows, etc. This is a being demonstrated like this so people can see it and it can be explained. It's also good to get reps in without all of your gear to gain muscle memory. There are other techniques for larger victims. Sadly the other "reality" is most people spend only a few hours in their career training on this.