I'm not going to reiterate the amount of effort we put in getting access to either platform, that information can be easily found here on the Forum. We're aware of Android Auto now being available for development and will certainly add the feature in the future, but we' re not going to drop everything we've planned so far because Google suddenly decides to open up. That wouldn't be fair to everyone who's waiting for other features.
If Android comes across as a second class platform, that's likely because it handles like a second class platform. I recently switched back from iPhone to Android because I didn't want to sell my soul for a small piece of hardware (which is a whole other ballpark of problems) but so far the experience has been subpar compared to iOS.
From a more philosophical point of view: I think it is absurd that developing for two platforms requires two completely different skill sets, different development capabilities and in the end, different people. I sincerely hope for the convergence of technology to the point where developing apps is no longer the hassle it is today.
To illustrate, a group we're all forgetting is the WinPhone community. The small percentage of users doesn't justify the possible risks. However, that doesn't mean it wouldn't be nice to include those users too.