OK, at this point, I have to think that either the Jamies do NOT get it, or/and (rightfully so) trust that people do not. But in both cases, the only advantage that Jami has over “what the app” (that will always be better in every other aspect), is still ignored !!!
After all, “what the app” does publish its APK 
Now that it is clear that you are totally missing the point, I have to wonder what did you imagine Jami to be all about ?!!!
PS: I persist no more 
… and I regret that I never had the chance to install this Jami to see if it was worth my optimism (likely not, I will have to now think) … good luck, and, for sure, good bye 