Wow, that's a lot of unproven assumptions you have there. Let's consider one possible reason why you might be wrong.Olsen's secretary said she rceived a rquest to accept a collect call from Barbara and actually says she spoke to her. Collect calls are always carefully logged for billing purposes. Otherwise the phone company wuld not know who to bill. Yet the 9/11 commission says that all four of rhese calls were to 'unknown numbers'. Therefore those calls were not from Barbara Olsen.
The 9/11 Commission referenced a document called American Airlines Airphone Usage to highlight the four calls to "unknown numbers".
David Ray Griffin himself says that document "appears to be simply one portion of the complete report on telephone calls from all four flights, which was made available at the Moussaoui trial" (9/11 Contradictions, page 77).
If Dr Griffin is correct then it's quite possible that the Moussaoui trial is simply putting a graphic face on the same source document used by the 9/11 Commission. That is, it's repeating call details from there, not other documents.
That's just one way you might be wrong, but it really doesn't matter. The fact is the FBI aren't arguing this point, and the Moussaoui trial exhibit contains nothing to contradict the Commission Report. In fact, as we've seen, the stipulation shows both sides agreed that the calls took place.
Now, if you or Griffin want to build a house of cards based on flimsy assumptions, then go right ahead. But it's you doing that, not the FBI.