It does in ways you likely don't understand. At large enterprises with satellite offices, most of us don't want to sit at our desks and annoy our coworkers who are also in-office by taking calls at our desks. That leaves meeting rooms, which are at a premium.

Full single device for everyone would mean either everyone loudly shouting at their desks from within their noise canceling headphones or the company giving everyone an office with a door. As even Google doesn't do this for their employees, this is the next best thing we can do to save the sanity of our coworkers and respect remote colleagues dialing in by including them in a shared room meeting.