[GSlob]

"Too traditional" - tradition has its uses. "Too obvious" - asking semiliterates to visualize 5-dimensional hypercubes or something else equally exotic surely is a waste of time and exercise in failure. Thus it has to be obvious, given the intended audience of the book. [There was an old joke centering on how the aborigines catch ostriches. It pertains.]
As for "propaganda" uses - would not do. In the old USSR there was a magazine "Korea", put out by North Korean embassy. Maybe you have seen it. It was choke full of exorbitant praise of "Great Leader", "the possessor of the Paektusan spirit" [??- must be a rare cognac, I suppose] - well, if Allah has 99 names, old Kim must have had at least 200. They, too, hoped that it would have propaganda use, but the only use it ever had was a fodder for laughter. I would even bet that this very laughter was a well suppressed first reaction in North Korea proper. And pray tell me, what makes you think that the fate of this garbage would be any different?

[sergey1973]

In the end, you are right. It's garbage that will be thrown to garbage. However, you never know what propaganda tricks may do if used for good purpose to steer even small percentage of potential Jihadists from Jihad. You never know till you try -:))) !