Yeah. But I disagree with the larger position it argues for. Like all "real world" analogies applied to digital concepts, there's a sort of impedance mismatch.

In the real world, resources are naturally constrained. It's usually impossible to read everyone's mail in real time and retroactively pull up the contents of a letter sent 3 years ago. This limitation vanishes with online communications. Encrypted messages can be stored indefinitely and later decrypted.

The super safe backdoor we build today could very easily be used by a tyrannical regime a decade from now to get dirt on everyone. We can dream up all sorts of technical solutions that allow for a backdoor, but make it really hard to abuse, but at the bottom, those solutions rely on the government obeying their own law.

Well, at first sight yes, but a) they would gather everything instead of just actual targets and b) their access could not be protected properly from third parties who are not authorized.