Thankfully, local representatives have little say in statewide and regional transportation matters. Even if local leaders were to push for such an interstate, you still have many miles of US 23 between Portsmouth and Columbus that are at-grade with tons of driveway and farm entrances. And in West Virginia, the King Coal/Tulsia Highway projects are being built to corridor standards with intersections and interchanges, and even then - it's going to be a long-shot to get it finished.
I find those silly "I-73/74 Corridor" signs in West Virginia - not even using the standard interstate shields (prohibited by FHWA?), to be overblown.