AnFI - would it placate you to state that flapback and inflow roll occur as a result of inequality of lift and that they are overcome by the pilot positioning the cyclic to achieve the desired disc and fuselage position?
This both accepts that the aerodynamic effects exist (especially when trying to explain how the rotor behaves to students) and acknowledges that by using the cyclic, the aerodynamic effects are negated.
This allows the understanding of flapping to equality, removes confusion about which plane of reference we are are using or which rotor system or how much phase lag or many other variables that have muddied the waters in such discussions.
Then it is clear that whatever the situation, a change in circumstances (such as a gust of wind or some turbulence) will first create an inequality of lift and secondly, that the pilot will correct it to remain in his desired attitude/stage of flight.
We can then allow the idea that if the pilot changes the collective position (say in forward flight, without moving the cyclic) then an inequality of lift will be produced that he must again correct with cyclic.
In summary - air tries to do stuff to rotor, pilot does stuff to controls to oppose it.
