i think its a great idea...
i understand that there are many great 1000 hour pilots and many lousy 10,000 hour pilots but flight schools can keep their instructors longer and finding a job at a regional will be easier.
here in Argentina there is a senior commercial license (Canada had this license until 1980 i believe).
to obtain a senior commercial one must hold a commercial license with ifr and me rated and 900 hours total time and 25 multi hours and pass a written exam (same as ATP). this allows you to work as a co-pilot.
in Argentina to become a CFI requires 500 hours total and the ATP is 1500 hours total (typical ICAO standard) and pass a check ride.
maybe the FAA check take this approach. a sliding scale. i could never understand how one could get a commercial license in the USA today and technically get a CFI the next....