I have seen several interviews featuring Gabriel and I will say that, even when given the opportunity to do so, he has never gone on the attack against G, B orY!. Rather, he explains the features that DDG has to offer and what sets DDG apart from the other services. Then, I read Alexander's blog post and immediately wondered why he was attacking DDG. I can understand pointing out some perceived shortcomings, but why take off the gloves immediately?
I find that Gabriel has been very open about the operation of DDG. I find it interesting that he and his staff respond quickly to reported and perceived security issues, like the cookie issue mentioned above. I also sense that Alexander is pretty thin-skinned to be offended that a link to his Twitter account (the same account that helps "expose" DDG's shortcomings). I think that it's pretty magnanimous that Gabriel pointed the way to an opposing point of view.
Having read and digested both posts I'll say that I'm very comfortable using DDG and will continue to do so. By the way, unless I want to use TOR (and I don't), having DDG's server's off-shore is worthless, my information still flows throw my ISP and the NSA can force those records to be turned over, so I'm still screwed.