The company who first were hired to make the Game, used all the kickstarter money to finance other games they were creating instead.
After a year or two Hussie found out what had happened (they had barely touched it and what they've made weren't up to the quality Hussie was looking for) he ripped the contract with them and had to start it all over again.
What Pumpkin transferred all their stuff from their own store to WeLoveFine to focus a lot more on the game itself.
They've made a huge progress so far (with little to no money at all due to the above happening) and that's why it's taken so long.
It was a really unfortunate thing. :/