Dunno if I agree with the middle two. Midnight Mass released at the wrong time and was immediately overshadowed by Squid Game. Bly Manor had much higher viewership than Midnight Mass based on Letterboxd/IMDb, so I'm not sure if it's even the most popular Mike Flanagan miniseries HHN can still do. Fear Street had very strong viewership, but none of the films cracked Netflix's Top 10 most viewed of all time. Army of the Dead on the other hand is currently their
9th most viewed film with 75M+ streams as of October. Squid Game makes more sense as a zone, and Stranger Things would be dependent upon the fourth season releasing in time for the event as they only wrapped principal production a few weeks ago.