HC,
As the CAA does not ascribe to the Bristow Safety Goal of Zero Accidents.....the CAA judges success by the Rate of Accidents/Fatalities per 100,000 Flying Hours.
So if the current Rate is held or hopefully decreased by these changes then they shall consider that to be "success".
You should be glad all this results in more flying....more helicopters...more Pilots and Engineers....and greater revenue for the Operators and hopefully Dividends to Share Holders as a result.
As there are fewer passengers per flight then the actual exposure will be less as when an aircraft is lost there are fewer folks aboard.
Remember the Stats on that comparing the GOM to the UKCS Operations discussed in the past here?
Rough numbers....half the passenger load per fatal accident....and you can have twice as many accidents to arrive at the same number of lives lost.
It all depends upon how you want to measure success I guess.