Ok so first off, I think you've got bigger fish to fry if your kids / pets are getting in the location of a traditional wind turbine, ie. a roof or a massive 20m tall pole.
Secondly, wind energy is a multi-billion pound industry with billions upon billions poured in to R&D yet these kickstarter guys have somehow managed to beat that industry with something that looks like a bin?
The only flaw I can see in my logic is that somehow there's a lack of development budgets in domestic machines as opposed to commercial units, but that is a big if.
I'm not sold and frankly I don't see this going anywhere.