KRB, prepare to be shocked: there's at least one dual-pilot IFR EMS aircraft in the US that I know of: A PHI-operated S76 in New Orleans. And no, an over-reliance on technology is not one of the main problems: I can't think of any other industrialized nation that has such a large proportion of hand-me-down Astars and clapped-out LongRangers masquerading as EMS aircraft. Almost all EMS operations are for profit by the way, and even the ones that claim not to be (such as the Maryland State Police) still have to justify their budget to some corporate or government overlord.
Sas is right; it's (almost) always the same storyline:
1. Night
2. Marginal weather
3. ?
4. CFIT
Boring!