More fool you tbh. People spending thousands of pounds to test the game and be drip fed the 'modules'. Lots of promises, little delivered and little evidence that it will be.
Who spends $2,500 on a game that hasn't been released yet? Paying thousands of dollars for virtual ships in a game that has yet to be released and in fact doesn't even have a firm release date is madness to me. Even if it ends up being a great game, hell, even an all time classic, it's not worth it.
It is very poor form to change the policy. People seemed willing to pledge under the old terms of service. If you want to change something as significant as a refund policy then people should be allowed to alter their pledge (or revoke it) if they don't agree with that change. Altering a refund policy to pretty much exclude the chance of a refund until it's too late to get a refund, that's a pretty huge change, and not one that instils confidence when a backer has trusted you with thousands of dollars. It will be interesting to see how many more people demand their money back.