I don't doubt the pilots would manage but how many SAR experienced paramedics who would act as winchops do they have? That is what will make the difference.
No-one said it was impossible - just expensive, especially for the small number of jobs it will be used on.
If you don't train extensively and continuously you will get bitten when you least expect it.
If the ambulance authority call the SAR aircraft straight away, it will be there quickly - if they faff and fanny around, the only person that suffers is the casualty.
As I said before - it's just empire-building.