"Spending less than 50 percent of the week in the collocated office affords more flexibility and aids in the balance of work and personal roles, which teleworkers find satisfying."
Less than 50%. When I was a more of a contributor versus my current manager role, coming into work 2 days a week and getting my stuff done at home would have rocked.
There are also many things that weren't said. I have a 10x16 office with a door and windows. The folks on my teams are in 4-person semi-private pods with plenty of room with attractive color schemes, reasonably high quality furniture and natural light. It's work, but everyone is pretty happy.
In other roles, I've been in 4x4 high-wall cubes in windowless pens with 40 people where the brightest colors in the room were the red nubs on IBM thinkpads. That was a miserable working environment.
Personally, I'd rather work in my current environment than home. On the other hand, I'd rather work in my basement sitting on a stool and using my furnace as a desk than previous, crappy office environments/cattle pens.