Well, that's the purpose of the article, isn't it? To plant the seed that Atta was no fervent Muslim. Therefore, what? He worked for Bush? His real affiliation is known by US intelligence but they are covering it up because it would expose the "truth" that there is no Islamic terrorist threat?
Hezbollah is perhaps more communist in ideology than Islamic. One ideology is economic, the other religious. They both offer a vehicle for tyrants to enslave the masses, so it is no surprise that jihadists blend the two.
Like the Soviets before them, the so-call "Islamic" leaders are no more than pirates, or mafia thugs, attempting to acquire money and power through extortion and murder. It is an age-old profession, one that has been attacking human civilization since its inception with varying degrees of success.
Some martyrs are patsies, but when the true history is known, many more will have been found to have been extortion victims. They carried out the bombings so that their parents would not be killed, etc.