Ok, i liked the first Defense Grid. I'm not really into TD games, this was one of the only ones that i enjoyed. But to be honest, i still don't understand why they need to use KS. Defense Grid sold pretty well for an indie, as far as i'm aware. And, c'mon 1 million for a TD game? Really? Even if they make exclusively new assets for their game it's still too much. We all know that TD games are not THAT deep, like an RPG, for example. They don't need as many assets (no need for huge maps, too many voice-overs, for example).
Brian Fargo asked 1 million for Wasteland 2. And that's a fucking RPG. Harebrained Schemes asked even less for a sequel to Shadowrun.
Not to mention that they are getting money from Valve for their role in CS:GO.
Look, honestly i didn't like this KS project. 1 million for a true sequel and 250,000 for a DLC? Oh man, really? TD games are pretty popular nowadays, they aren't even making a niche game, which is one of the main reasons people turn to KS. They're looking like the "Activision of Kickstater" to me.
They address every one of these complaints in their video and many of them in their FAQ.