I'm very sorry you feel abandoned. I'm not sure what I could have done to avoid that. I worked on DaD as hard as I could when I was part of SGG, but now that I'm not it's out of my hands.
The core Kickstarter deliverable was access to DaD for a number of months, and to the best of my knowledge everyone has had access to the core site. The stretch goals were supposed to be delivered by now, and they haven't been, and that is something I was working on when I was with SGG. A lot of the update to pathfinder has occurred, but certainly not all of it. A lot of the new art was put up but, again, not all of it. There's a finished Player's Guide I delivered to SGG before left, but obviously I can't say if it's gone up yet or not. I made the text of it directly available to everyone who asked for it. I manually reset expiration dates to ensure none expired despite their time being up exactly because not all the rewards had been delivered.
There's not a lot else I can do at this point. I worked on DaD as hard as I could while I worked for SGG, and now I don't. Hyrum can always get more people involved, though last I spoke to him about it his plan was to take over doing it himself. Unfortunately I'm not part of the company that owns it anymore, I never had access to the Kickstarter info directly (it was run on Hyrum's Kickstarter account, not a company account), and budget formed from the KS had money designated to take care of the remaining items.
I'd like to see DaD fulfill its potential too, but it's not my call how to handle it at this point. Obviously sometimes people leave companies before projects they worked on come to completion. I had things unfinished when I left WotC back in 2001 as well. Some came to fruition. Others didn't. I worked very hard on DaD when I was with SGG, and tried to make sure that people who had signed up for every pdf SGG made for a year got something new every month. I finished the Player's Guide, and did a lot of the Pathfinder updates myself. But no it wasn't done when I left, and I wish it had been. But it's not something I have the rights to anymore. If Hyrum wanted to hire me to keep working on it for SGG, that's a conversation I'd be happy to have.