You are right, there's nothing particularly unusual about the current level of communication. That's not to say though, that more communication isn't required in order to reassure a concerned community at this particular point in time.
When the signs are fine, the SDK is receiving generous updates, projects like Starling and Feathers are receiving funding, no future date has been set for end-of-life, then sure, we can infer that this is still a viable development solution and express that notion to ourselves, our teams, our bosses and our clients.
However, as you know the last SDK update was minimal by comparison and Starling and Feathers have had their funding ceased. No end-of-life has been announced, but is there one person here who isn't reading the signs and half expecting it? Don't get me wrong, I don't want that announcement, I love developing in AIR more than any other framework. But Adobe's actions are speaking louder than their lack of communication at the moment.