FWIW, two profs are having a phone conference (speaker phone!) in the cubicle right next to me as I prep for tonight's class. No, I don't need an office. Offices are for the bourgeoisie.
A former colleague only had an outdoor voice. Even though we had nice individual offices, I could hear every word he said on the phone and he loved to talk on the phone, mostly to professionally successful alumni. He also loved telling off-color jokes which I could inevitably hear through the wall and which caused some uncomfortable silences between me and students who'd stop by my office.
Cubicles and/or common spaces? Over my dead body.
That article (which I have read and commented on already) just assumes we all have huge offices and we don't use them. I use mine very day, thankyouverymuch, Mr. Biemiller. It isn't huge, either. It's poorly designed and awkward with fixed furniture and cabinets in the worst possible configuration but I don't have to share it, thank God.