Which 4? Just the 4 NS with the 225? The 4 Super Puma 332 & 225 in the NS since the 2012 panic-fest?
When I look at the incidents involving the EC225, frankly, I see nothing unusual compared to other helicopters. There is just less of it.
The numbers tell me that modern types, of which this is one, kill fewer people than older types. There are fewer accidents and it is easier to get out alive.