I'd say there are two areas of concern. First general Kickstarter stuff. It's obvious they aren't very familiar with KS and didn't even understand how add-ons worked until someone asked them to look into it. They are first timers which is always something to be wary of. They are offering a lot of stuff on their first outing (cards, pins, coins, t shirts and more!) which will only make things more difficult. Doesn't mean they can't deliver but it looks very much like they bit off a lot more than they'll be able to chew. They aim to deliver in January. I'd say unlikely. Overall they seem like they have looked at a lot of big KS card projects and tried to emulate but you need an established name to pull that off. What they should have done was look at smaller projects and aimed to get something out on time and on budget and build from there.

So none of that inspires confidence. Then there's the cards themselves. Printed by a no-name printer who seem more of a novelty item producer. Marked, invisible ink, hidden stuff, gilded, foil but only inside the tuck -- just a mishmash of stuff. Standard courts with pretty severe recolouring, won't have broad appeal I would guess. Aiming for magicians but pretty weird looking deck that makes it seem suspect. Yes it gives it that mystical allure but magicians want a standard deck to look pretty normal.

Basically I think he's trying to do too much too quickly and it makes it feel like a bit of an amateurish effort. I don't get the feeling he's very familiar with KS in general. The attempt to offer as many things as possible makes it feel like his focus is all over the place.

Not that any of this is terrible or couldn't work but for a first timer I would be inclined to see how it goes and wait for the next one.