The effects discribed in the AIC apply to receivers on adjacent frequencies and in close physical proximity to potential high power transmitters that can now be located up to 107.9MHz. These transmitters have always existed up to 104.9MHz without any significant problems.
This 3 MHz extension, now seems to threaten the entire aviation band, all 29 MHz of it. Have the laws of physics changed? We can accept interference on a 25Khz spaced receiver from 8.33 Khz spaced transmitters operating in the receiver passband, but the highly improbable interference from a source over 10 MHz away makes comms receivers obsolete.
Strange it does not apply to FAA certifed aircraft.