With over 850 EMS Helicopters in the Country flying 24/7.....I would suggest the Risk Exposure is a bit greater than the rest of the World too.
You should recall I have been very vocal in my advocating for changes in the US EMS Helicopter Industry for a great many Years.
No need to preach to the Choir and you know it.
I would challenge you to prove the European HSE Mindset really does reduce the accident rate.
It would appear it does simply by ending that activity altogether thus achieving a Rate of "0" per flight hours.