A New Twist on Floating Wind Power

I think there is an error in logic, or math, or in the understanding of flotation dynamics.

Given the same working height of the center of drag of the turbine, and equal power output - the overturning moment is the same.

Therefore the 'difference' is a greater mass - still above water - verses a lighter mass at the middle of the center of effort.

Or perhaps they haven't worked out to make a lighter HAWT head yet?

Or how to design a stable buoy - which they need in either case, to resist the thrust of generation.