Open bikers usually get scared of an out of control situation before they get into the trouble that protection inside a cage allows.
If I did use it when it was not said to be cheating and set so many LSR records, how would you know ?
Ford knows, but the S2000 Honda project with the magazine doesn't.
Part of the reason the rule was rescinded is because those that wanted to use it, did it anyway, tech could never find one, the rest didn't care, and still don't.
The 95 Vette I got from GM with the leaky top under the Lemon Law program has it and we turn it off so the HS students can learn to really drive autocross.
Don't be so defensive, use it if You like it and others never will.