Firstly it was to deflect from the then ongoing Pakistan school massacre and secondly to establish or rather reinforce the image of the Muslim brute in the Western mind. Btw,the alleged planner

The 50 year old Sheikh Haron Monis aka Manteghi Bourjerdi comes from Borujerd in Louristan,western Iran. The town has always been a haven for Jews,ever since the Islamic conquest of Persia in the 640s.

Hard numbers weren't possible to find but there are enough Chosenites in Borujerd to have their own dialect. in western Iran), Judeo-Borujerdi (spoken in the city of Borujerd and elsewhere in Lorestan Province, in western Iran),

http://karanjazplace..com/2014/12/deconstructing-latest-false-flag-in.html