It's not... pointless. Not everyone is as pragmatic as you, and some people take things more personally. They just need time to vent, rest, and figure things out.

[It's just all a natural part of processing emotions. They're people, not war machines.]

The best thing we can do is support them and offer encouragement, not berate them for it. That way we keep up morale, and no one gets left behind when it's time to move on.