I'm pretty sure that the biggest risk of an accident/incident occuring is in & around the immediate area or an aerodrome...? Taking away some class C airspace & replacing it with E in areas not in the immediate vivinity of aerodromes, to free up ATC to monitor GND & TWR frequecies sound logical. As far as getting in and out of E... it's more "hands on"... but it is safe. The main issue should be the main risk factor.... that just makes sense.