Dubious. Inventors continue to mock Weibull, and continue to fail at it.
An airfoil is designed to maximize lift while minimizing drag. A HAWT or Savonius VAWT work well because the lift is opposite of the direction of windflow, so a large amount of the wind's kinetic energy can be extracted.
This thing is actually optimized to remove as little kinetic energy as possible! Only the drag caused by the angle of attack does anything!
Hold on a minute before we toss this one aside. Let's think it trough and see if there might be some way it could benefit us.
The first thing I see is applied leverage. I can't grab the bumper of my car and lift it up because I'm not strong enough, sort of like light winds not being strong enough to power a wind turbine.
Now, if I put a jack under the car and I crank the jack, I can lift my car easily. Lifting my car by the bumper or working a jack requires the same amount of energy. What's the difference? Success or failure, that's the difference.
Could this wind wing do the same thing as a jack, which is to take a small source of energy and use it incrementally over distance to accomplish something folks say is impossible, like do useful work from light winds?
I don't see why not. If the lever arm is long enough, a small force wind should put a lot of focused power on the short side of the lever. Sort of the way a jack allows a human who is not strong enough to lift a car to lift a car.
Perhaps this could work a pump or compressor, rather than attempt to generate electricity. Maybe it could generate electricity in a way that does not require rotation. Or, maybe there is no practical use for it after all. Just, think it through before giving up on the idea. Are there any advantages over a wind turbine, like fewer moving parts or simplicity? What are the other shortcomings compared to turbines, aside from lower output?