Even if individual device reception isn't possible, just using these for better backhaul access like for an office building or neighborhood would still be massively disruptive.
Aww, hell! Make it a small pizza box sized device I can put on a bracket I can hang out the window! Include a wireless hotspot and you'd sell those things like crazy!
BTW existing US regulations on apartments and the like require landlords to install roof antennae if technically required.