I don't think this is sustainable. This would require the mods to keep up and know about all divisive topics, current events, and controversies going on across the entire world, which... no one can actually do. It's also a ton of emotional energy for them to actually keep up with these things. As a moderator on an unrelated server, this would be completely unreasonable to ask of our team of volunteers who are donating our time for free because we love the community. As far as I'm aware, the mod situation on Lorwolf is the same. They are not paid employees.
We cannot keep up with everything in the world and every piece of media and we also have to look after our own mental health. You say that users don't all have the time, energy, access, etc. to research these issues, but the same goes for moderators. Moderating a server, especially a big, official one like Lorwolf's, is a really big time and energy commitment as is.
I don't know what happened in the Discord, but I think it's important to note that a moderator stepping in to say "we've decided this is not allowed to be discussed" does not automatically mean everyone involved is in trouble (and if it does, then that moderator needs to be re-trained). It sucks, but it doesn't mean you're a bad person, it doesn't mean you're in trouble, it just means "please do not discuss this in the future".