Yeah I saw that. :) The first reason is "Why would the Jihad Leader give such disparaging numbers in the attempt to recruit more peopl? Even Muslims like to live, ya know." :) Well the answer is that this person is giving a very low number, but one high enough to say "Lookie at all that the Martyrs we gots here for Allah! 4,000 brave Muslims died for our God."
I forget, I've heard it a few times.