I have two concerns.
First, I do worry what the spin will be of the documentary--it sounds a bit like they're playing up the tragedy angle of Gary and Dave as fallen icons. Gail Gygax had told me that she was not asked to be interviewed for it, which is a little weird since she was a part of that era. I'm curious who at the TSR era will be interviewed and how that will skew any perspective, but that's a risk for any documentary.
But more importantly, I am more concerned because this is a Kickstarter asking for funds when a few of the in people charge of this project, including Andrew Pascal and (I believe) James Sprattley, have apparently abandoned their other Kickstarter, the D&D Documentary one. I'm really hesitant to contribute to a Kickstarter when it appears that they've left another one that they are still legally obligated to see to fulfillment. There doesn't appear to any communication from their camp about this previous project, and based on the communications from the former partner, I can't really trust to contribute to this Kickstarter unless their involvement with the other one gets cleared up.