The more I thought about the RNAV-1 requirement for procedure turn entry I think I got it: The RF definition for GOGGS would include the localizer at the intersection of FCAr217 and think about it. The FAA defines the course width for the localizer to be 4.0 deg, which at 21 nm is going to be about a 3 nm wide localizer and then try to define that with a VOR radial at 20 nm where the radial has a permissible error of +/- 4 deg and you get the reason the holding pattern course reversal is based on a GPS waypoint. The errors using RF would be just too great. That doesn’t mean there is no localizer, it only means the localizer is pretty wide way out there and TERPS approach design requires more stringent error margins.