So he is saying that Iran is not responsible for checks notes Iran hitting ships of third party nations? How old is he, 5 years old?

Strait of Hormuz is not international waters. They are fully allowed to close it, at least on their side of the strait. When people ignore laws, usually there is a penalty and enforcement. Closure here is enforced by missiles.

Whether Oman is a party in this war (given their harboring of US bases and military assets) is up to debate.

They are fully allowed to close it

According to the United Nations Convention on the Law of the Sea (UNCLOS), have a right to transit international straits like the Straight of Hormuz. Article 38 to be exact: www.un.org/depts/los/…/unclos_e.pdf

I dont know. Generally it gets a bit muddy at such a stage. Are they party to the war? Did they expressly forbid USA from using military bases to resupply from/attack Iran? Did Oman cushly stay silent and complicit playing both sides? Are trade ships that are trading with the enemy, not expressly and officially guaranteed by Oman not valid targets in a strait majorly controlled by Iran (even the Oman territorial waters are a bit silly once you take into account the geography)?

If anything, Iran, in its desperation, is fighting well with the superest most bigliest ultra fascist state in the making.