They didn't imply that there would be a DRM free version available of the game and all the DLC, they stated it pretty succinctly in their FAQ that it would be the case.
Stating things succinctly is a good way to leaving them open to interpretation. :) "For PC/Mac/Linux, the game will be available DRM-free from our website" can have the interpretation of "for backers", and still be left true. The DRM-free download is fully featured, contains all the content which was promised as part of the Kickstarter, the editor and the ability to share user-created content. So Hairbrained is giving away what it promised.
Wrong. Their FAQ states (emphasis mine):
How will the game be distributed when it's released to the public? What about DRM-free?
For mobile tablets, Shadowrun Returns will be available via iTunes, Android Marketplace, and the Amazon Android marketplace. For PC/Mac/Linux, the game will be available DRM-free from our website."
You have to go out of your way to juggle words to interpret it in any way that does not include making DRM-free version public, which, incidentally, is what we have now. That, and the fact that DRM-free version is going to be obsolete for modding once the first post-Berlin DLC comes out, gives backers - myself included - ample reasons to feel angry.
I've never had any prior experience with Shadowrun, I've backed it on a principle alone. Is it a tactical RPG, is it DRM-free, is it available on multiple platforms? Awesome, we need more things like this - that's what I thought. If all I wanted was just a game, I would have bought it when (or if) it came out, but I was buying an idea, which turned out differently than what was advertised.
The worst thing is that it sets a precedent and harms other developers. You know someone goofed up hard when the rest of the Kickstarters start putting disclamers that they won't pull Harebrained on their backers.