Why did they not say anything until they had run out of money? It must have been obvious from some time ago that they did not have enough left to complete the project, yet they didn't care to tell their backers.

Also, it seems odd that they talk about the problems they've had seeking other investors, as their kickstarter page didn't mention anything about needing more money. Rather, it implied that the $500k raised was all they needed to release the game. So at some point, they realised it wasn't enough and sought more investment, yet couldn't be arsed to post an update to kickstarter about the funding shortfall.

Very poor.