This becomes more stupid with every addition you make.
And? This says nothing but Madame el Wafi like many French Muslims never bothered with formal religious education in the family.
next you strangely quote the very evidence of his becoming a practising Muslim:
Somehow you believe this is evidence against devoteness?
By all accounts Moussaouie became converted to radical Salafi practise while he was in London, upon attending the Brixton mosque. He was expelled when he wanted the Imam to give him directions on participating in Jihad, which the Salafi radicals consider a great pillar of the religion.
He then since devouted himself to this radical vision, abandoning his prior plans to become a businessman, etc., for a life of the religious radical.
The pledge of the bayat itself is something only the religiously devout do, the word is a technical one in Islam; his use of the term even says he is practising for he would not use it otherwise.
Only because you wish to close your eyes.
Casual and sporadic? Incredible, you are a fool or an idiot.
Since he “converted” to the radical Salafi beliefs, he has been very connected - in fact devouted his life to Islam - that vision of Islam, but it is the vision of an important minority. For those who belief in this manner, that is religious devotion, even if you for some bizarre and stupid reason want to make a semantic difference, a fake difference.
If you wish to say his devotion is a perversion or something, fine. I agree. But it is devotion, and it is clear from his personal behaviour and appearance during the American trial that he is subscribing to the Salafi practice - the beard, the head covering, all this speaks to him being practising and devout. His appearance before, at his arrest says perhaps he was “hiding” but since then he has not.