Thank you for reminding me how much I dislike working with PMs I especially can't imagine working with this one. Imagine constantly having to revise estimates and getting micromanaged by someone who isn't your manager. The "role responsibilities" conversation would happen very quickly I find it especially ridiculous that this person is interrupting people two times a day for fresh updates on top of a daily standup .…
I agree with everything you wrote, but I also wonder if this is less of a distraction in the case of Pivotal since their engineers work in pairs.
Moreover, I recently fell into the trap of working for an entire week nonstop to solve a really hard problem. Took a few hours off one day to clear my mind and when I came back, I had the problem solved inside of an hour. If I continued down the route I was going down before that time off I can guarantee you it would be more days wasted.