What if you wanted to listen to two radio stations at the same time and they happen to be 10.7MHz apart? THEN YOU ARE SCREWED! No artificial conditions there. Now you are limited in what you can do because you cannot grab two radios and set them in front of you to listen to two different radio stations 10.7MHz apart.
Why would you place two radios right next to each other tuned to different stations? - I also suggest you check what the station spacing is for FM radio