IMHO, the fact that they app is unobfuscated and can thus be easily decompiled is even better than released source code since one can't be sure that the released source code truly matches the actual build in the app store (unless they also go to the effort of having 'reproducible builds' - which would be quite impressive).

Also it's good to keep in perspective that the 'government' can already track people to a great extent, e.g. via cell towers and face recognition.