Don’t worry, they’ll work out the kinks, or more likely somebody else will work out the kinks. It’s easy to make fun of R&D when the you have unreasonable expectations. For example, the critics attacked the cost per kilowatt hour. Did they expect this project to start off producing cheap power? No, you don’t shoot for the moon on day one. First work on the engineering details on a small scale, try some things, see how they fail, and make it better. Could they have done it cheaper? Probably. Did they make some useful technological advances? Yes.