Actually a fixed wing PFL to land with the engine at idle IS in fact as close to being the equivalent of an EOL as is possible and is or should be something every PPL(A) student does - obviously one would fly it from or close to the overhead onto the runway. But that is now a bit off topic.
I don't for a moment disagree that reducing perceived high risk exercises ought to reduce insurance permia and all power to you if that actually pans out.
But to the extent one can disregard that financial aspect for a moment, I still don't see that it is better from a skills perspective for the majority of pilots not to have actually flown (closely supervised etc) an autorotation to touchdown...
However I don't and have never flown R22's so perhaps my view would be different as regards them...