There is a certain amount of energy available in a certain cross section of wind.  Betz' Law (1919) states that the maximum theoretical amount of energy that can be captured from a rotor is 59.3%.  When losses and mechanical inefficiencies are taken into account, modern turbines achieve coefficients of performance at between .4 and .5, or 70-80% of theoretical.

When you add all kinds of expense to capture the same amount of energy a simple cheap rotor captures, like permanent magnets to "float" the turbine, you've already lost the game.  Plus, in the video, the CEO or whatever says the turbine reaches maximum output at 28 mph (45.1 kmh).  In most urban areas around the world, that might be 20 -60 hours a year.

We now return you to conventional reality.

"Life shrinks or expands in proportion to one's courage." - Anaïs Nin