@axel_2078:
You're right - I shouldn't assume that the frame sliders were incorrectly mounted just because your fairing cracked. However, I've seen that happen before - not incorrectly mounted, but placing pressure on the fairing due to a lack of clearance, especially in '96-later GSX-Rs.
I still stand on the intent being to protect the frame, which if damaged is what causes the bike to be ruined vs the fairings, which if not altogether inexpensive, are at least easily replaceable.
Buy the sliders. They work.