Somebody ‘splain to me why, if Iran (or somebody else) disregards “international waters” and norms of conduct enough to block the Straits, they wouldn’t just lay a bomb or two on this pipeline as well?
Small mobile missile launchers can block the Strait of Hormuz effectively from Iran shores.
Bombing an underground pipeline is a little more difficult in another country.
That would be a direct attack on a sovereign nation ON THEIR OWN SOIL. You don’t do that unless you want to see every goddam nation in the entire middle east attack you...or pay the USA to do the attacking and let them use all airspace whatever else we would need.