It certainly makes more sense for an expansion than a free patch.
Seeing the technical difficulties it will pose (Read: It costs a LOT of money).
Yes, and one I'd gladly pay for.
But we ALREADY paid for that in the Kickstarter.
It's a risk you take isn't it? There's no signed contracts between the backers and developers. Backers are not shareholders in the company. I think you are much better off just acknowledging that putting money in Kickstarter is always a gamble. You may or may not get a feature, you may or may not even get a game. In this situation I think it's a bit presumptuous to start demanding features. Of course the devs want everything mentioned to be put in their games, but they do have to make a reality check.