That's like arguing that TLS will stay irrelevant unless it comes with government backdoors.

The fact that authority figures can't break it is a feature, for the kind of people who would want to use it in the first place (which should be all of us, but sadly is not yet).

> The fact that authority figures can't break it is a feature, for the kind of people who would want to use it

Like I said, this is why it will stay irrelevant. Most people don't want to perform those actions, nor support those actions by using the systems that do. We're never, as a society, going to want to support money-laundering, terrorist-funding or price manipulation.