The project is not about "Refunding after 1 year!" Its a normal ico project but there is a strategy to make investors feel confident at the project - which is Risk free investment method. So don't spend all over the thinking on risk free thing. Its just a side. All we have to do is read and read about the project concept, field and invest on it if it really be succeed. If the project looks unsuccessful: no mean of investing Eventhough there is a risk free method. In that case I see a practically success.
This clearly explains what I have been saying. The "risk-free" thing is some sort of surety and not what the project is actually about. It is better to focus on the project than the sense of security they are trying to create.