I am still trying to figure out why all of those things that you mention require a remote connection or need to be tied in to the "entertainment" system. There should be zero possibility that "remote" commands could be sent to any of those systems. I would go so far as to say those circuits should all be encased in a faraday cage to prevent the circuits themselves from acting like an antenna.
For myself, I am pretty happy with many of the advances; however, I have had issues with drive-by-wire throttles and would hate to see a similar problem with drive-by-wire brakes. Some, dare I say most, of the systems on a vehicle should have a mechanical linkage to fall back on.