It does not matter where the radio is located. It matters where the antenna is located.I might have learned something from watching that... is it true that wifi won't work in a Magnesium alloy frame?
Correct, same with GPS. If you put a battery powered radio in a metal box and close it up, the radio will have a lot of trouble playing the local radio stations. Depending on the metalwork, the radio waves are either reflected or absorbed by the metal.
So it becomes very challenging to build a small, complete metal/alloy body that supports sending and receiving radio waves.
But I believe the fear of another Rebel by another name is continuing. I will gladly forgo WIFI and GPS for something that will hold up to the abuse I give my camera bodies.