That's a bit misleading, because it isn't as if he is using the latest Supreme model. They're using older builds that used to be retail models, and in Kane's case, really old...
This all shouldn't be surprising; variable kick sticks have been the most popular models at the NHL level since, well, they've been around. I've always described those types of sticks as sticks that do any sort of shot decently - unlike a "slapper" stick or a "wrist shot" stick like the high and low sticks play - and that's why they're that popular. The game moves so fast that they have to be prepared for anything; it's not as if they can put the game on pause, go to the bench, get their slapper stick, press play then bomb one.
The low and high kick sticks have gotten better in terms of versatility but before, they weren't as forgiving.