The insurance companies primarily... secondary the people with bombs that can sink ships attempting to use the waterways.

They were anchored. Slightly different than being docked, even if the overall point remains. The other thing is they were in Iraqi waters

It means if you sail through it, Iran will launch drones and missiles at your ship.

The Iranian military has stated their intention to attack any ship passing through the strait without their permission.

The strait is considered closed when a country not afraid to use its military says ships can't cross.

I'd say the analogy is a closed door.

It's not that it's impossible to go through it, but you have to do something specific in order to do so beyond just trying to go through, or you're going to walk straight into getting a bloodey nose.

But yeah, these ships weren't anywhere near the strait.