I may be partially true, but I think there's a more charitable way to explain it. Managers work with people. For a coder, talking to a manager is a distraction.

I may be partially true, but I think there's a more charitable way to explain it. Managers work with people. For a coder, talking to a manager is a distraction. For a manager, talking to a coder is literally most of what they do. So obviously a manager wants to create the optimal conditions for this - surely you can talk on video, but talking in person is better. Surely, you can manage 20 people by videochats, but getting them in the same room is better. Different work means different preferences, means different approaches.