

E2EE is, theoretically, secure. It certainly prevents a government from hoovering up your data when they casually cast too wide of a dragnet while “chasing a criminal”. …At least, when it is implemented honestly and correctly.
Now if governments wanted to properly backdoor some E2EE implementation; all they really need to do is compromise one end of the conversation. Of course, they want to be able to do it auto-magically; through delivering a court order to a single point; and not through busting down the door, or capturing the user of, one end or another of the conversation and compromising the device.
The question therein lies; do you as a person want the government to be forced to bust down a door? Some people think they should be forced to break doors and others do not feel that it is necessary. There are many diverse stances on this question; all with unique reasons.
It’s clear to me that E2EE works properly…the governments would not be trying to “end Encryption” if it did not work. Therefore it stands to reason that E2EE is not compromised, if a government is forced to pass a law in order to compromise the encryption or turn it off entirely. That proves it works.
I just logically proved Encryption works, without even taking a stance on the matter. For the record however; I do support Encryption. I think this law undermining it is a massive governmental overreach that will quickly lead to that same government finding out how critical Encryption actually is to their people. Just give it time.
Lack of detailed audits…only in this case specifically…does not imply lack of security and/or privacy.
The protocol that Signal uses, which is in fact firmly audited with no major problematic findings, plus the fact the client is OSS is generally enough to lower any concerns.
The server side software in production for Signal.org is not OSS. It will not be. You are required to trust the server to use Signal; because the protocol and the client renders it factually impossible for the server to spy on your messages. The server cannot read messages; or even connect who is messaging who if the correct client settings are used. (Sealed Sender).
Non-OS stats software in general is not automatically lacking in privacy or security, particularly not in this case where the affected software does interact only with software that is verifiably open-source and trustworthy in general due to the protocols and how they are implemented correctly in a verifiable manner.