It depends on the rules. I've been to a lot of races where if your getting lapped you have to pull off. I believe koc had the rule as well.
I could see that working on a circle track like KOC or a dirt track but this is a large sprint paved course. Its easier to let someone go and have them pass you. Issue with dirt karting I saw and lap traffic is the karts being lap wouldn't let you go and try to wreck you.