Lots of other apps are now being removed from Google Play on "accessing personal information" grounds (notably today "Touchdown" was removed, an Exchange client owned by Norton for some years now).
I would suspect Google Play policy changes rather than the US gov ban, as you say, it's still on Apple's AppStore...
On my 40th "flight" now, v 1.2.1 works reliably so far and can for now live without the added radar view, which I understand is the only difference between 1.2.1 and 1.2.2 for us Android
Mini 2 pilots?