[Teever]

But you know that it's a law to stop people doing something domestically which is exporting a ship.

You know this.

[s1artibartfast]

Yes, as a best effort to restrict behavior abroad.

[Teever]

dude it's all a casual web.

They're regulating the behavior of their citizens in their domain to prevent them from doing actions that will lead to detrimental outcomes for their citizens.