Wouldn't it make more sense to contact directly via one of these methods...
Their behavior to date suggests to me that would just be throwing questions down into a black hole, from which no answers will be forthcoming. I expect that the questions we have are awkward for them, so if they aren't public, they can be conveniently ignored, and they can continue to insist that nobody's asking.
I don't actually expect them to answer these questions, mind you. They serve to frame the PR problems they have at this point, though, so there's some purpose to raising them, even if they end up being merely rhetorical.