Neutral would be doing nothing and letting people work out their frustrations without an intermediary deciding for them. But that's not Facebook's culture, internal or external.
In a different world, managers could still have discussions with employees about hitting their work targets without needing to tell them what to talk about with other employees.
You don't need to participate in these discussions or read them. I'd say it's fine to relegate such discussion to certain channels within the company. But banning it altogether is taking a position.
Not to mention the fact that Facebook influences politics every day. Blocking employees from having a discussion about that, which is very work-related, is authoritarian.
Zuck is still running the Thiel playbook here.
