Let's not assume they have other funding. They need to explain how they are going to fund the game with only 40k of kickstarter. I think the game looks decent, I like empire builders and it's always nice to see ones that aren't specifically civ - although At the Gates seems very heavily inspired. Some of the new features definitely sound interesting though. If the financials and development process become more clear I will definitely back it.
While "it's sufficient to finish At the Gates because we've already made significant progress, and have a very small development team.", the release date is 2014. That's 1 year development - 40k isn't even enough for one developer let alone 3.