This quote is a parody of itself because you could also argue that they have to be together all the time and no one should ever think about work when they're not at work with the team.
That email that a manager sent at 10pm regarding some stuff todo for the tomorrow 8am meeting with the client ?
"Sorry boss, can only work with the whole team."
"Colleague on vacation?"
"the whole team on vacation!"
Misalignment will always occur. Always, and it's the manager job to ensure that there aren't any.
Bringing everyone in the same room is the simplest way for a manager to manage, without understanding the need of the member of the team.
Yes, I sometimes need face to face discussion with colleagues to nicely understand the specifications, and it's way better than any video call.
But when I'm trying to debug that script in the CI/CD that doesn't work as intended, I don't need to be sitting next to the project manager who's always on the phone.