> Conventional contact tracing methods also haven’t been faring well.
Despite this, it doesn’t even bother to identify the many reasons tracing apps might not be widely adopted yet, in particular privacy concerns (although it does mention that “draconian” approaches are the only ones proven to work so far, as if that proves that privacy respecting approaches can’t be useful at all.)
Even more fundamental than privacy, though, is do people even know that these apps exist? Personally I’ve only heard some rumblings about the Google/Apple api, and not much more, and I’m guessing I’m far more aware of the existence of these apps than many people.
Ultimately, it’s far too early to declare “failure” on this front.
Edit: According to 9to5 Mac, there are still no apps in the U.S. using the Apple/Google API as of June 18. https://9to5mac.com/2020/05/19/how-to-turn-on-off-covid-19-c...