Limpet mines can only breach the outer hullof tankers and are not considered effective at penetrating the inner hull. Iran has both torpedoes and anti-ship missile which could have easiyt taken down these tankers from quite some distance away, yet you claim they would rather use an ineffective mine close up where they be could easily observed? Yeah right *rolls eyes*
And your basis of expertise in this area is what?
Ever touched a limpet mine? Swum with one? Attached one to a ship in dark water? Been a passenger in an SDV? Made shaped charges and platter charges and used them against all sorts of targets?
“are not considered effective at penetrating the inner hull”
And your subject matter expert bona fides are????
You assume that the destruction of the vessels was the goal.