The example at the top of the article isn't very good. It is not clear to me that the manager didn't do the right thing. So the issue took 3-4 weeks to get solved.

"Everyone, including that manager, operated as though they were collaboratively discussing the issue."

That doesn't sound so bad. How do we know that the manager didn't "oversee a timely resolution"? Not everything needs to be solved yesterday. Maybe allowing everyone to collaborate on the issue and let it stew for a bit lead to the best outcome.

Speed != productivity != quality.