Some very interesting points there Gaseous.
All I can add is that the factory doesn't teach a big flare, or even a flare at all for a low RPM recovery. The reason they say to put in aft cyclic is to hold the ship level when lowering the collective, as the nose tends to drop. They don't recommending flaring the ship at all.
It's pretty easy to visualize a blade that is close to stall, when asked to flare the ship by increasing the pitch on that blade at the 3 o'clock postion would subsequently cause it to exceed the critical angle of attack and then for the rotorsystem to blowback.
Would like to see some mathematical aerodynamic simulations of the results of cyclic inputs in near stall situations!
James