The B75 turbine blade itself is 75 meters long, while the entire rotor assembly measures 154 meters in diameter. As it spins, the blades cover an area of 18,600 square meters—that’s roughly two and a half soccer fields—at a brisk 80 meters per second, or 180 MPH at the tips.
Moving that fast over such a large area generates a tremendous amount of force. About 200 tons of air press on the blade every second with wind speeds of just 22 MPH.
https://gizmodo.com/the-worlds-biggest-wind-turbine-blades-are-so-long-thei-5930272
It is the air turbulence they cause that is one of the big problems.
Which is why our little ones do not have that problem.
What works in small does not necessarily work in big.