Because of the creativeness of Blizzard and lack of creativeness of other studios,on creating epic memorable community events like this,its why,in part,no other studio has got the numbers and fame Blizzard have.
Please ZOS,im not saying to copy,but be more creative in creating memorable events for ESO.One ingredient for the recipe im sure about is world wide event that involves all players in the game.
Look at this comment "lol that's awesome, I may not play MMOs but stuff like this is why I will always be fascinated by them, you simply can't do stuff like this in any other genre."
Dont you want gamers making comments like this about your game?
And here is of what I'm talking about.
http://uk.ign.com/articles/2016/09/08/world-of-warcraft-players-go-looking-for-secrets-accidentally-unleash-world-eating-boss
And before WoW hate towards me start.I dont play WoW.Last time I played it was like 8 years ago.But apart from the boring old combat system,I admire that game because things like that news I posted.
Common ZOS,create memorable community wide events.No single player crap where you dont have players by your side to share the excitement with.
Lets make ESO better than it is.