There are a couple of issues with this. It's a well-known effect in management theory that workers behave differently when they know they're being observed. Also, presumably most of their tenants employ knowledge workers not factory floor workers, and so data about how often they go to the bathroom or how many steps they take in an hour is probably a lot less relevant than tracking what they're doing on their computers.
Measuring every single second of how it gets spent- That's idiotic. Knowing that everything you do can be easily checked and measured- sometimes it works miracles.