I was wrong, I looked more closely ...
I've always had to separate my point & flat to fit a big one on my 22.5" kettle ...
What he's done there is get in there and resected out the fat between the point and the flat, and he's left enough of the beef intact that he's slid the point out sideways and has the brisket splayed out kind of like a reverse-Z-plasty w/ the flat on top of the point ..
I think we mostly butcher packer's w/ the point on top, but in this case, he's got in flipped over on the grate ...
I just detach it and roll w/ double decker using the hover-grill ...
I think the hover-grill is money well spent.