There is so much flexibility in where these can be deployed that you would probably never find them near a populated area anyway, just for economic reasons. They can also be deployed at sea much more practically than a tower turbine.
EDIT: according to the FAQ, there are failsafes for both navigation and tether failure. It can even land itself untethered!
I'm a bit concerned about how to protect human lives around - will it be required to forbid access to a large area ?
The FAQ states that the peak altitude is 600 meter. Does that mean a circle with a radius of 600m must be protected ?
Pretty sure they thought of it already, it looks like a well thought out project, I'm just wondering.