Bit much to blame the CAA when almost all the initial comment on this thread was "they're interfering in our long established rights to conduct air displays as our fathers did before us".
If they had acted before Shoreham my guess is that everyone would have pointed out how few privately owned display planes had ever killed anyone..............
Sure the CAA could/should have acted differently - but the greater avaition community could/should also have thought this through
As ever hindsight is a wonderful thing