I am quite happy to believe the CAA's research which showed that mobile phones can have an adverse effect on avionics systems. And I am quite happy to believe that the experts took the usual safety approach of recommending that something be prohibited until doing it is shown to be safe, as opposed to the public's normal stance of "I haven't caused a major incident or killed anyone so far so there can't be any risk!"

Neither of those things showed that the experts lied about anything.

And I'll happily believe all of that over some random TV programme or non-aviation popular magazine. If that's where you get your information from, then you really are in no position to accuse the experts of lying. But I refer to my previous post.