He's speaking from an anarchist perspective where, indeed, the idea of law is contradictory to the ideology, but usually I hear concepts like the non-aggression principle in relation to minarchism, which argues a state should exist but only with the limited remit of enforcing and protecting individual rights.

That said, I absolutely agree with the core of his argument that "law" is not "morality" and while that should be obvious, people falsely conflate the two very frequently.