Isn't this rather old? I remember this from around five years ago. Obviously it is a parody of just how ridicules 9/11 conspiracies are.
Anyway, as for picking apart said theory:
Was the Rebel Alliance ever referred to as a terrorist organization anywhere? The Empire merely refereed to them as "rebel scum." The insult was largely similar to that used in the American Civil War of calling the Confederates Jonny Reb.
It was actually a military rather than a political target. Did we see a single civilian on that station? In fact the only act of terrorism in the film was the Death Star blowing up Alderaan.
Wedge may have stated it to be impossible, but that did not stop him from carrying out the mission anyway. Soldiers often use that sort of hyperbole when given extremely dangerous assignments. When US Army Rangers were told to assault Point Du Hoc, they stated something similar. It didn't stop them from successfully attacking it.
As for the familial connection I would agree that no one in the galaxy apart from the two Sith and two Jedi knew about it. That was actually always the number as whenever one that knew died, a second learned about it(Luke and Leia). None of them would ever have a reason to let that secret become known(though I wonder if it does leading up to the new films). But at that point there was no reason for anyone to question how the Death Star was destroyed.
As for Vader's "unorthodox and unprecedented" decision to lead the attack directly, did these people not see how Jedi lead during the Clone Wars? They were always leading from the front, often from a fighter cockpit. Vader was almost certainly the best pilot in the Empire, not someone who anyone would ever question.
In addition the defenses of the Death Star did not stave off the Rebel attacks. All three trench runs failed to lose even a single fighter to the Death Star's guns. They only lost fighters to Vader.
As for the Anakin/R2 connection, R2 had the plans, not 3PO. C3P0 never even knew he had them the entire time. Obviously because protocol droids were known to be blabbermouths.
There is also no indication of an economic connection between Darth Vader and any company that gained contracts on the second Death Star.
Luke Skywalker's "minimal combat training" included being an extremely skilled bush pilot before flying X-wings, whose skills impressed Rebel Alliance pilot and Imperial Academy graduate Biggs Darklighter. Not to mention that he was Force sensitive, a fact that this video is obviously ignoring.
In addition to the analysis problems there are also several outright factual errors. The numerous presence of these makes their sources questionable at best*.
1) Their timeline is factually incorrect. Vader entered into combat as the first Y-wing run began, long before Luke began his run.
2) They claim it was Wedge who made a failed run. It was Red Leader.
3) Referring to the Millennium Falcon a Corellian class fighter vessel.
* I suspect this may have been intentional as a way of parodying the real theory.
Ted C wrote:If the exhaust port had been fully shielded instead of just ray-shielded, there would have been no rebel attack at all.
Generally speaking, I agree with what you are saying, but this point is logically incorrect. If the shaft were particle shielded it wouldn't have been able to serve as a ventilation shaft.