OK, here's to get this out of the way. For either side you're on in this thread.
Common sense says that by using the angle that the attack took, which was to rely on a chain of communication to counter it, that faster is much better.
In fact, the soonest-finished attack should best allow for unstopped destruction, which was the entire point. Then to add something for everyone: it also leaves the least room for suspicion against that chain, right?
Those two things make up the entire subject of 9/11, when it comes down to it. Meaning everyone, no matter which "side" you're on, should understand that what happened was not Plan A, due to the impossible length of time.
You should understand to look at it in exactly that way, rather than as something which was meant to happen as it went. No matter which side you're on.