I believe this is because the game was originally this:
and this version didn't pan out, in favor of what we now see.
I believe this project (the current one) has been in planning / works for more than a year, so I would not panic too much. This sort of thing IS kind of common. You just don't actually see it because this crowd funding thing is new.
and, the people who Kicked that one seem that they are already getting their pledges moved to the new project. So, I don't think there's much to panic about.