I looked at this, and thought not a bad idea. But then gave it some thought, they are raising money to pay for the design and engineering of this kit from everyone, if you contribute $200 or more you get a copy of the kit. But in the long run, once the molds are complete, the company can continue to pull in the benefits in terms of kit sales from those that "donated" the cost of engineering the kit for them.
I would think a better approach would be to determine the demand for the kit, and maybe have people put a deposit down to show interest, as opposed to have the model community paying for it, and company getting free kit engineering that they will make money from down the road.