Just visited his Kickstarer page. Some backers gave him a deadline of September 14,2015 for a real status update. If this date passes with no real update about the game legal steps will be started by these backers.
It was a very promising looking game, but if other things in life require a higher priority a little communication would smooth the emotions and waiting time. I am sure, if he needs help to finish this project and would ask for this, he would get it.