The FL1 had an exhaust back box that was prone to off-road damage hence the exhaust protection plate.The exhaust on the FL2 is well out of the way, but the plastic fuel tanks are not - hence the rear protection of the FL2 is further forward.
The forward protection plate tends to be used as a skid, shoving soil etc. out of the way, continued use of the original front skid in this manner rapidly results in wear / damage.