That's what you fail to understand. It's open source, it has been audited. Venezuela and any other country can check and crack the encryption if has holes in it. The long first paragraph is something that's not a secret, but widely known.
You know what's also safe? Encrypted emails. VPNs. Matrix.
If you think this is a movement against foreign agents, you should think it's useless too. For a sufficiently motivated agent, this will be trivial to overcome. For the general population? Not so much.
Unless next all forms of private communication re forbidden, of curse. Surely what people on a privacy community advocate for.