Because of the ongoing fucktastrophe, the cries of "Use SIGNAL!" are constant and unavoidable. And I get it, it may be the least-bad option in a sea of terrible options. If, that is, you choose to ignore the advice of "don't use your phone for that shit" (the Stringer Bell Rule). But out of curiosity, because I haven't been keeping up, has the Signal Corporation addressed: The fact that they ...
Point 2 is mostly not true, in that Molly exists and you can do reproducible builds with either implementation.
To be fair, from Signal’s attitude it seems that Molly is tolerated rather than welcomed. And that it may be shut off if it gets big enough.