Is Throne and Liberty story telling method cost effective?

MMOExposed

I been playing Thone and Liberty 🗽 a little bit. It's not perfect, but some things do stand out to me. One of which has been the story telling.   
How the developers mixed in those moving still shot art works for a cinematic cut scene experience as well as having a narrator summerize the story after the cut scenes, really does the storytelling well. 
Blizzard's WoW level cinematic cutscenes is the ultimate goal, but until technology becomes more effective to make that cheaper to make, we won't be seeing that become anything more than how it's currently used in Blizzard games.    
      
But I wonder how cost effective this thone and liberty method is. It may still be pretty costly to developers. If it's not, than why don't we see more of it in the MMO genre? Just curious 🤔. 

Sovrath

I don’t think it’s any more costly than any game that uses voice over work.

if anything the 2d work saves them money.