Rockhound,
Great that you enjoyed your recent flight, a bit of a shame that you see fit to write to the CEO to complain then ? Still he or she will probably laugh, I did !
You have to remember that the primary function of the flight deck crew is to get you safely to your destination. It is very likely that the Captain (or First Officer) will also welcome the passengers on board with a few pertinent facts and bits of advice that may ( or may not) be of interest to the majority of the passengers. The weather at destination often is.
If time permits and it is deemed of general interest then a brief synopsis of the route might be given. However due to weather and en-route shortcuts or re-routes, the original overflight points may not actually occur. Additionally one individual may be fascinated by every "feature" they fly over, but a regular commuter most certainly isn't. It is not the flight deck crews job to entertain you even if you consider that to be good "
PR". A couple of hours in the air may pass slowly to you, but the crew will be very busy dealing with the business of operating the aircraft and maintaing the high levels of monitoring and situational awareness that are so important in a high density traffic environment.
There is no radio silence as you put it, the radio is extremely busy ! Non essential PA's from the flight deck are therefore usually avoided and even when they are given it is normally to convey something that may be of interest to the majority of the passengers.
To answer your question, no we are not "afraid" of disturbing our passengers, however common sense and best practice dictates that our passengers do not want to be unnecessarily disturbed. It is a case of striking a balance, and that balance is heavily weighted in favour or getting on with the business of conducting a safe and efficient public transport operation.
Still as I said at the start of this reply, it was great that you actually enjoyed the flight
Of course it has to be said it would be nice if a few of the passengers listened more closely to some of the things that were said to them on the PA by us and the cabin crew. Maybe then there wouldn't be the need for those individuals to stand up while taxying or ignore the seatbelt signs etc. I suppose that in itself is another arguement for keeping the PA's simple and to the point.