Possibly. Shock was certainly an aim. But the methodology was to use >death< as the vehicle.

Mindset is a terrible thing to waste after all...but each of the brethren was off to their several dozen virgins after all...

If destabilization was the aim...then you certainly are smarter then BinLaden...but the translation of that remark is not something that I alone will make...and while a harsh judgement...is one that needs to be pointed out. Qualification...and excusing...is not an option. Nor is it done without some measure of "we had it comin".