a) transparency into who the developers are, and what the terms of engagement are
b) even if they didn't / couldn't open source the code from the get go, a clear date and target of when they would do so
c) even before the app was launched, a single one page document of the architecture, the regulations governing data retention, etc (all were released post facto, after the "fake news" and "privacy noise").
Concerns about the govt collecting massive, potentially identifiable data on an individual level for an application that they originally mandated everyone had to use to travel, is not "fake news". Perhaps one may feel such concern was unwarranted (and I disagree there), but how is that "fake news"?
We may have differences of opinion on the level of trust one can have on govts, but I'm sure we can agree that transparency and visibility into such critical decisions is reasonable to demand and expect.