Well in times gone by I flew the Caravan on 3 different continents, Aus, Africa, and Europe, in only one of those places would this experience be considered "inferior"...(Aus)
I even saw a laughable requirement by the RFDS not so long ago for Min 500hrs twin time for PC-12 pilots! so its not just regionals who are stuck in a time warp.
Oddly enough (but not odd really) for those considering flying the Caravan to build some hours, you will have no trouble what so ever converting onto a turbine twin, sure there are a couple of considerations to think about regading single engine handling...but other than using a rudder pedal (which you need plenty of when flying the Van) its really no big deal at all.
Finally..just for all your die-hard 500hrs minimum twin time knuckle heads...I transitioned from the Van to an A320 in 3 weeks, it was easier than letting the chief pilots tyres down