I really think it is ego. Blizzard is the king of MMO makers, they can’t do anything wrong in their own eyes. They have the data that shows that people want to just play alone and care about the story above everything while completely refusing to acknowledge that the game never was about either of those and that game play style only rose up later as the MMO part got lost.

If Blizzard was to hire the turtle team and add all their content into a real classic plus experience that would be admitting that Blizzard is incapable of doing that faithfully and if it got popular then that raises even more questions about Blizzard and their C suites decisions