The IDF has a significantly different Force Structure that US Forces. Sergeant is an E-3 over there. They also run a more top heavy Force with more Officers and less Enlisted then we do. More like the European forces.
So you'll see more officers than us, because what we'd ahve a Sr. NCO do, they are doing with officers, and you'll see more "NCO"s then we have because their Sergeant's and Staff Sergeants are E-3 and E-4.