The main issue appears to be that as per the blueprint user MUST use one of the mandated handsets (iPhone or Android with pre-installed and privileged Google Services) and:

- MUST use either Google or Apple account - must not be banned by the provider or sanctioned in the USA

These issues have been flagged to the devs working on the blueprint since the inception, only to be handwaved away.

Getting banned can happen randomly even if you're not doing anything illegal or wrong (it's enough for a robot to decide you're within the blast radius), getting sanctioned can happen if you're an UN lawyer investigating human rights abuses USA actually likes.

So I do see a problem here.