Well, I think that not buying the books will only result in the books being sold out when you want them.
This is like people who cancel their AP subscription because they have too much material to play right now. They love the APs but cannot get through them fast enough to keep up with the schedule.
For FMG - they Way of the Wicked was excellent. And what I see of this kickstarter it is also.
Would more communication be nice? Yes... Am I upset about it? No. Would I not buy this AP or the next? How could I not buy it (or them)... Would I badmouth FMG and Gary? Of course not - his work is excellent.
Would I recommend his work? Yes, it is awesome.
Guess I am not worried about immediate gratification.
I have contributed to many kickstarters over the past few years and even if this came out to next year some time it is by far not the worst kickstarter I have backed.
One of my first was a monster book by some unknown company but I was new to kickstarter and excited about helping something new get off the ground. I may see that one some time in the future but I no longer really care about it.
There is a film that looks like it is in a legal situation and therefore may never make it out into the light.
There is one that should have been out last month by the first estimates that I will likely not see until next winter.
It just is the way it is... And I would not suggest anyone else not support these companies or their efforts. Some of them I may not support in the future which is my choice but I would not suggest anyone else do so.