>>508343550
Deep draft ships like oil tankers and cargo ships have to go through the shipping lanes because most of the strait of Hormuz is too shallow for them, they can scrape bottom and damage their rudder and propellers, besides Iran can shoot artillery or missiles or torpedoes at them

>>508330316
Iran blocked the strait of Hormuz before a couple decades ago by sinking a few ships in it, deep draft ships like tankers and cargo ships have to go thru the shipping lane or they risk scraping the bottom possibly damaging the rudder or propeller