You see, this is what I’m always saying. We’re so out of control of our data that we don’t stand a chance of understanding how the apparently trivial decisions we make (such as whether to install an app) might affect other people’s privacy, let alone our own.
I'm sure all the privacy issues have all been worked out, and the app is completely benign and totally worth trusting with your phone permissions.
You might need to recalibrate your sarcasm meter. I keep meaning to get around to positing a law that says the more useful an idea sounds, the more horrifying the privacy issues will be,