1) I find it ironic that at 2:55 he says "no proprietary dust collection," which turns out to really mean "no dust collection at all."
2) When he bashes the metric height gauge and wonder how to "spin around in ¾" ply" it puzzled me because no ¾" plywood that I've seen this century is actually ¾" thick - most are inherently metric. And, of course, as we have discussed here many times, being exactly in the middle is actually a detriment since you could accidentally assemble things flipped.
3) He complains that the height gauge block is "flimsy" and shows it wiggling - but that wiggle is not in the direction of height stop reference, so it doesn't matter to the height accuracy.
4) The "just 3 position side stops with more wobbling" - well, yeah having more positions is better, but using large flip stops instead of paddles slows you down because you have to manually flip them up/down as needed, whereas with the paddles you either just reference from the edge or push into the face and they then automatically retract, but pop out for the next cut. So, that's more efficient. As for the wobble, yeah, not a great look, but that's where the Domino's flat geometry wins over dowels, enabling some horizontal play without sacrificing strength. And the play is always the same so cuts match anyway.
5) He's selling this as a pre-sale to get around Kickstarter fees. It seems obvious that, between his YT channel and Katz-Moses' YT channel, they believe they can get enough exposure without relying on Kickstarter to attract customers.
I don't disagree that the base/fence unit on the Domino could be improved, but I do think such improvements would mostly be for "feel," not accuracy. Klein needs horizontal stops with no play because he's using dowels that have no tolerance for either horizontal nor vertical alignment. But, as noted above, the small fence seems to mean that keeping the unit pressed against the workpiece while drilling in and out with no movement is hard, and with no room for clamps.
There are lots of home woodworkers who would love a Dominio, but can't justify the $1350 to over $1800 cost. At less than ¼ the cost, even expensive dowel jigs like this are far cheaper, but overall I think Triton missed the boat by making their Mafell clone too cheap to be useful.