Thanks - it’s simply wrong. Lots of assumptions including the one that if the Betz model assumes a maximum disc area thrust coefficient Ct of 1 for a turbine extracting power from wind passing through it then all and every rotor exposed to wind can not possibly experience a higher thrust than in the Betz model. Then make speculations about hybrid energy harvesting from a wind turbine moving down wind using both propeller spinning to extract power and line pulling which are… useless and wrong about what happens at the limit in which the rotational harvesting is zero.
If that theory would be correct it won’t allow a drag coefficient of a descending autogyro rotor (same as thrust coefficient in a HAWT) significantly greater than 1. Which isn’t the case.