Current wind turbines are severely discussed now. The main reproach is their intermittency preventing a really useful integration in the grid. Unfortunately the tweets are in French language. So i put also the respective graphics below of each.
I am not sure that these graphics are correct but the question on capacity factor and intermittency is a recurring question and is increasingly posed in environments where controllable energies are queens.
Airborne wind energy systems could perhaps escape to this issue by two combined ways: a higher capacity factor thanks to higher winds, and mobility in order to find better winds, considering an off-grid production first.