Implausible undeniability, a brilliant way to plant the seeds of uncertainty. For the people who have enough reasons to be concerned about intercepted communications, the ones who were the core reason for the blocking (like activists) this can't sit well.
Are you sure these reasons for blocking were activists and not something more nefarious?
Of course I'm not sure. But activists are usually a safe bet in such cases. Whoever the reason for the ban they're probably having some doubts right now.
> Implausible undeniability, a brilliant way to plant the seeds of uncertainty
All that while having open-source and much safer alternatives. I don't see a problem here.