I was thinking that kick starter was all about helping in project to "kick start". So obviously for me, I find it normal that's there is still no game at this early stage of development. Or rather: 10% complete development so far.
It looks like people get "wrongly" used to dev studios submitting projects nearly completed. But those are more like the exception than the rule. If look closely to the list of kickstart submission I think that's the case most of the time for software development, that is they are far from completed. And the lead developer has an idea and needs fund to work full-time on his idea and/or hire folks for helping him out. For instance: lighttable of Chris Granger. And I think that's what is thrilling about kick starter and launching a startup. That's all about taking risks.
I get your point, but I think you're identifying the wrong problem. Kickstarter backers being averse to "here's my idea, give me money" pitches is rational. Most professional game developers are pretty bad at estimation, pretty bad at risk forecasting, and just generally aren't great at bringing stuff to market on time and on budget. Kickstarters with a bunch of people with no real personal credibility or track record (individually or as a group) are serious risks and it's perfectly understandable that they'd be treated as such by potential backers.
As I noted upthread, I have a Kickstarter coming up sooner rather than later (like, May-ish) and a lot of my time right now is building out my engine to have a workable hands-on demo for people to play with. It won't be designed to be "fun" yet, but rather a synthetic demo where I can go "these features will be used for X, Y, and Z, and you can see them already basically done". I need money to pay my artists to build assets more than I need money to write the damn game.
You can call it "wrongly" if you want, but I think there's a pretty big difference between "look at my cool game (that doesn't exist)" and "look at my cool idea for a game, that I need Kickstarter to fund". The OP isn't 10% done...they're 1% done, and while they look better than most of the folks at the same level of development, it still gives me precisely zero confidence in their ability to deliver when they overstate so obviously what they're bringing to the table.