These are weak arguments in the post. It is not the commute which is the problem. In my experience (tech specifically) office is unnecessary because I do less work, and it is more depressing because you still talk with the same people over the chat and calls. There are issues with the shortage of phone booths, and listening to every conversation does not help concentrate. Then there is poor old hardware, not many will buy Herman Miller for their subordinates. Another thing not mentioned is the total show of appearances over outcomes. Not to mention geographically distributed teams.

At the end of the day it is the product and its perception by the paying customer that matters.