Which is also what you want really, if you have everything on WiFi. High density setups with really small cells so you can reuse channels. A building with high signal attenuation helps with that.
Having said that I'd never want to work for a company like Google.
PS:
Bad radio propagation means Googlers are making do with Ethernet cables, phone hotspots.
"Making do with Ethernet cables"? For me that's still the most reliable and secure way of doing networking on computers. You're at a desk, why not have a cable there. For mobile devices, sure. At my work every docking station has a cabled connection luckily.