Mashallah.
While it is not nice to see classified military-industrial documents from Iran being leaked to the enemy's information centers (like "FAS.org"), in this case, it proves that Iran possesses the technology and ability to produce super-cavitating highspeed rocket-torpedos. And the document seems not to reveal much about important details such as its guidance systems, but is sufficient to indicate Iran produces such a weapon - which in turn leads to the hypothesis that Iran might have leaked the paper itself, in order to put an end to the anti-Iran intoxication in the western media, which were stipulating that the Islamic Republic "cannot" produce Shkval weapons system equivalents; at the same time, the enemy is kept in the dark regarding specific details.
It always amazes me how much nerve and how little shame the anti-Iran propagandists have... I remember when Iran first revealed the Hoot torpedo, US / zionist military propagandists reacted by shedding doubt on the authenticity of the news, and tried to portray Iran as technologically and industrially "incapable" of such a feat. They even suggested that a video sequence released by IRIB, showing a Hoot launch, would in fact have been an old Chinese PLA video.
Now that evidence has emerged Iran does possess and mass-produce the weapon, and that previous "arguments" denying this fact were shown to be fraudulent and fallascious, US / zionist propaganda adapted itself to the undeniable reality, and adopted a new discourse: the new Pentagon / CIA / Mossad propaganda line regarding Hoot, is that while Iran does produce the weapon, the latter would not be really useful in combat. Articles are published by US "naval defence experts" suggesting how "easy" it would be for targetted vessels to simply outmanoeuver the Hoot, or use other countermeasures to neutralize it; also, the focus is placed on suggesting that the launch platform of the Hoot, due to the weapon's limited range, would "not" stand a chance of approaching US vessels enough to succesfully target them (I read one such article recently, and will post the reference if I find it).
Which of course is speculative nonsense, as Iran's Ya Mahdi stealthy FAC as well as its stealthy semi-submersibles, in a real conflict situation in the Persian Gulf, do actually stand a brilliant chance of slipping through the enemy's surveillance net and radars to get into firing range. The Hoot is a major asset in Iran's naval defence, and the enemy is trying to underrate its power so to maintain the morale of its own troops, knowing that fighting spirit in NATO armies is very low, specially against capable adversaries such as Islamic Iran.