It can be difficult to penetrate the layers of lies about 9/11 and this particular zone of the conspiracy, viz. the Saudis, is especially obscure. But taken on the surface, once we see the false-flag conspiracy behind the 9/11 operation, the issue of the Saudis falls into place, although without full resolving the issues.
A false flag conspiracy that used Arab patsies would surely end up being under the microscope of Mossad and the Saudi intelligence services. We can’t take it much further, save to note that given this kind of evidence, as in this video, we must suspect that the cooperation of the Saudis was sought (by the perpetrators) and the choice of so many Saudi ‘terrorists’ is an obvious result of the way the plot was constructed.
The issue of Saudi pilots is in any case obscure: many students think the 9/11 planes were run by remote control software of a very advanced type not in the public domain. The difficulty of targetting jetliners with the precision seen is very hard to understand, even with highly experienced pilots.
So the issues are hard to study, but this video is complete bullshit.