Local morning shows in smaller markets are bound to become increasingly rare. I doubt they are a differentiator in most cases.WRKR is fortunate in that its corporate overlords haven't forced the lame WGRD-based morning show down its throat. Townsquare runs that show in nearly every other market where it owns either a rock or classic rock station in the Midwest and Northeast. (There are a few exceptions.)
WRKR to this day still has a local morning show. Even WMMQ in Lansing can no longer say that.
I have not gone into the details of Jack syndication since a long-time friend George Burns retired. My understanding was that all of the under-#50 markets took the syndicated version, while most of the larger market ones coordinated playlists, research and the like with the syndicator, Sparknet.