Not wanting to be too picky but I believe the term Coriolis effect is misused here and relates to a moving object being apparently deflected in it's trajectory due to the movement of the earth eg wind, artillery shells etc.
The blades lagging and leading as they flap is because of Conservation of Angular momentum - re the analogy of the skater, mass moves inboard - rate of spin increases and vice versa. The movement of the C of G of the blades towards and away from the hub is purely the effect of flapping, whether from cyclic input or flapback.
The positioning of the blades when viewed from above appearing to take their rightful position on the tilted cone of the rotor is Hookes Joint Effect