For me shared drafts are a bit, not confusing, but unfamiliar concept. Because as I see it shared drafts is basically just polished solution of what here is suggested. And if an admin wants use… timed/delayed publishing is working name, isn it, using simple category with proper security setting is way streamlined solution than using a plugin just for cool popup serving same thing what topic timer offers.
Or am I missing some important parts now?
Edit
Wait a second… was shared drafts plugin at all, or was it inbuild option? Can’t remember 
