The problem really came in Africa and the Middle East were overall IT literacy is low. People could often use a computer but were not familiar enough with it/scared to break something that they were afraid to really problem solve - esp human rights defenders in their late 40/50s in these places.

So for example, if taught A then B = C, TC was fine. The problem often came when A then B = Z, then TC became a problem. It's UI/UX and use of language (why call something "Mount"? Just use the word "Decrypt" for gods sake! - yes its not perfectly accurate but its easier for people to understand.) was pretty intimidating for many of the people who's lives really depend on it.