Of course they weren't going to fund a game like this with 2 (or 10) million bucks. It was obvious some investors would come along at one point. It was very likely that said investors would be publishers and/or platform holders.
As long as people get what they pledged for, I see no issue.
Let's not pretend they had a ton of alternatives. AFAIK, the choice was between this and nothing. It's safe to assume any other option would have happened over the past decade.
Edit: and yes, crowdfunding is neither an investment nor a preorder. It's good will funding with the hope the project comes out and gives the promised rewards. I have an intuition most people not understanding that are people who don't actually use KS.