I think they'd agree that they could probably have planned their Kickstarter better. And having to go out and pick up some move controllers for my PC might be annoying. But it would be sad if a couple logistical issues killed these games: http://www.kickstarter.com/projects/gutefabrik/sportsfriends-featuring-johann-sebastian-joust. I'm backing a little extra than I had to for the reward I wanted.
If you're only backing things that look like they're going to succeed, you might be doing it wrong.