Because they're trying to recruit moslems, not OC teenagers into Islam.
They should have included links to the CIA's sabotage and other improvised munitions pubs, available online. Even Auntie Arson's manual, meant for animal rightists, not folks who toss goats on horseback for fun.
But its all good. Total, perpetual, long war, noncitizen mercenaries, the whole deal: Rome did not fall in a day.