We will continue to find new ways to kill ourselves and our passengers.
No, you will keep using the same old ways of doing that - NVG single pilot at night just invites worse decision making and increased cockpit workload - the result will be the same, sadly.
The ' it's bigger and better in the US' argument doesn't hold water, neither does the ' no amount of regulation will stop idiocy' concept.
You said yourself
Regulation has slowed it down, though,
Now I'm not saying that if some regulation does some good then more regulation will do more good but your own argument points to the fact that ONLY regulation will make HEMS safer.
Self regulation hasn't reduced gun crime, self regulation didn't stop bankers wrecking the world economy and self regulation won't stop needless deaths in an industry that is supposed to save life not waste it.
As for hand-wringing, every EMS crash reported on PPrune comes from posters in the US - if there is not concern for why it is happening, why post it on a discussion forum?