I know they (Pikes Peak) were having insurance issues. WKA didn’t want to cover the event without some changes made to the track layout. Maybe that did it in.
It would be nice to have a long track available for kart racing. Second Creek was just too dangerious for karts with the barriers and concrete walls. We have done a couple of long tracks back east and they can be a blast. Very close racing and very high speeds. A quality track design can be safe for karts.