BS! Crypto software has to be open source to be taken seriously - all the other things you write about are additional factors that count in and are not related to this one argument, so you are trying to wishiwashi the discussion - it only shows that you think your readers are not able to think clearly and in a well-structured way or you are not able to do it.

Without sourcecode no crypto routines can be trusted - period. Anything else might work in the fake industries, where producing marketing lies is part of a standardized way to make money, but not in the real crypto world.