If you are going to start quoting mid-air collisions - then you are going to have to start quoting the more pertanent runway incursion accidents that seem to be the major risk in aviation today. They are a lot scarier - and when they happen - it's on a bigger scale (eg - Tenerife). This is relevant because the new airspace changes are supposed to be taking the focus away from airspace not within the immediate vicinity of major aerodromes - so that controllers may monitor busy aerodromes more closely (in theory anyway).