To be fair, the author kept the post short. I didn't find any fluff in it.

Perhaps as the guy on the team that's constantly interfacing with managers or clients, you don't find any value in a quiet atmosphere. How do the rest of the folks on your team feel?

Of course, cultural practices reinforce each other. If your team practices both Everyone Is Client-Facing, and Phone-First, then there's likely a lot of chatter anywhere you go in your office and people ironically resort to headphones to find quiet.

In many teams, there are only a few that require the use of their voice above a low volume, and even then it's for limited intervals only. Without a simple well-understood rule, such folks can dominate environments and unnecessary interpersonal friction can develop.