Iran has reportedly declared the Straits of Hormuz closed. That would seen to be a bit of an escalation.
"reserving the right to sink or seize any ships" would seem to be aspirational at best, and a red flag at worst to justify a bit of a tiff against their beloved leadership.
Is there enough popcorn for this one?
Iran effectively choking off China's energy won't go unnoticed in Beijing... nor anywhere else on the planet. It's one way to tender a resignation that doesn't involve 6th floor windows.
There is a symmetry in the fact that Iran supplied Russia Shaheed drones to attack Ukraine, and when Iran is getting some aggro from Israel it asks for support from Russia and gets a No response from Vlad the victorious. Given the effectiveness of anything coming out of Russia that is more offensive than vodka breath....