> That people thought the sovereign waters of a nation were not their sovereign waters absolutely blows my mind. Is it poor schooling, some kind of warped world view?

Because they are not? Oman clearly shares a part of it.

its also the sovereign waters of oman as well, its just oman outsources its military to the USA, who didn't have the ability to enforce its sovereignty.

But this was a know risk, and there are at least 20 years of plans, thoughts risk assessments for the Strait of Hormuz. Had the state department not fired everyone, or the DoD not fired all its strategic advisors, they'd have been able to tell the exec all of these problems.