The point is, that, yes, sure, show initiative, be a team player, plus be willing to stand up to corporate bullshit, but also work with the givens constructively, etc.

But that doesn't matter if there is noone from the other side (manager, other team members), that help to bring the newcomers into the fold.

How come someone was just given an MBP and let loose on her first days without literal supervison?

There was no desk. Okay, great, how long does that take to solve? Just call someone and grab a chair and sit next to someone on the team.

This whole thing is a parable about the lack of sincere human interaction.