Do not agree. The scope of the proposals in the DDA is huge: there was no way they were ever going to get all that done before they published. That much was clear from early on. But they could have published a well rounded subset of the grand design, and move towards it. What they did was publish an ad-hoc collection of features that was not a well rounded subset, but just what happened to be ready by their arbitrary cut-off date. I will stress, however, that they got the most important stuff right: concentrate on the plumbing: flight model, the stellar forge, and so on (I'd like to be able to add networking there), and once that infrastructure is in place, then build the game out.
Doesn't sound like we would disagree on much, but that you are more disappointed than I am. Which I fully understand. I personally think work done in last 6 months have put good foundation for the game. As I said, I believe FD would gain more if they would have communicated this clearly. They have chosen to do silent treatment when there's touchy subject matter where they think they can't win. I suspect if they would have stronger and more experienced PR team, it would be less of the problem.
Disagree again. The DDF was two things: a nice big lump sum to help get over the kickstarter funding line, and a means of validating their plans with signed up players before it was too late. There are no additions from the DDF, just what FD designed, though they made changes, a few of which were significant, after pondering the feed back they did get. DDF members (just like beta testers) will say 'I told you so' and point to things that FD were told, and did not act upon. If those things are in fact bad, the fault for that is FDs (hence the "I told you so's").
So basically they mostly finalized designs on what they felt was direction they want to take the game. Why we have to assume then they have abandoned these ideas, especially as quite a lineup of them are actually in game? Yes, there's no oriery map (yet), yes, exploration - and I know this is big change - isn't so very detailed (yet, I assume) as we wanted it to be (and it can be discussed to no end but there's strong anonymous hints that Hyperspace discovery has been meant for dark objects...with PP elements like being enemy of faction this start to make a lot of sense, doesn't it?). There's still lot of things slowly, but surely soaking into ED fabric. Wings DDF topic has been actually implemented (although there's still ideas they can add there).