Return to Revisions

Yes, they can, per the Meta.SE thread which requested this feature and has since been marked as 'completed' meaning the feature is available.

If there's a specific case where this may be necessary, consider reaching out to moderators (perhaps in chat, or through flags on a post using "Custom" reasons, and explain which user and which edit you're concerned about, but only once or twice, not many times) about the user, to ask us to look at their review actions and consider whether they're being overly disruptive or not.