I've just watched the video, and, wow, that's a tough sell.
Three bits to lose, including the pin.
"Fastest deployable" is a bold claim. For the "fast" deploy with pin retention you need to use the £65 - sixty five pounds - holster for your £95 banger. I make that £160 per grenade, right?
And then you need to trigger not one, but two separate mechanisms before you can pull it. Which he demonstrated while looking at it in front of him, with bare hands. OK, now do it by feel, with gloves on.
And that's if the pin comes out cleanly when you pull it.
OK, you've managed to get it out. Assuming you haven't been pewed while fiddling with the catches, what if you you decide not to throw it? Or you have been pewed, and you need to put it away.
Go on, disarm it and put it back. How are you going to get that pin back in, gloved, probably by feel, when it's on such a short cord? Then fasten both retention clips, again by feel.
Same pin problem with a Dynatex, but he's comparing it with a TRMR, and that's twist to arm, and importantly twist to disarm, job done.
I get that it's been designed to minimise the chances for accidental discharge, but... why? It's a .209 popper, not a magflash. It's not usable as a proper real-life-or-death distraction device, it's a training device. So it's really not that big a deal if your .209 pops off when you fumble it.
I've self fragged with a badly thrown TRMR, but I have never, not once, ever, accidentally set off an armed TRMR in my hand.
tl;dr version - a really expensive way of solving problems that airsofters don't have, while introducing a whole set of new ones.