I suppose that could be, but few diaries ever end up in the rural areas. Even fewer PPM's do. If Audacy thinks the rural areas will make up a huge difference, it’s going to be disappointed.
WMC-FM does better on clock radios and handhelds, but, if you have a decent car radio or home stereo, it's going to do as well as anyone else with a Class C1 or better signal. The laws of physics and the curvature of the Earth will ultimately win out over power on FM. It might do better in an airplane, but you shouldn’t be listening on an airplane anyway. Driving between Memphis and Tulsa, I always found WEGR 102.7 did the best in terms of distance on the I-40 run. I even got it as far away as Russellville once, but KLSZ 102.7 from Ft. Smith quickly overpowered it. Most Memphis stations were comfortably listenable in the car until about Brinkley. That was about when Little Rock was easiest to enjoy, too. On the 8th floor of Richardson Towers, I could get KKYK 103.7 and KOLL 94.9 on my stereo, but that was due to the height. I couldn't have accomplished that on the second floor.