And what do you think those players did before Pandaria? You've admitted they don't raid. Answer: leveling main and alts; dungeon runs, and dailies. A little PvP, perhaps. Now they've also got LFR, pet battles, and dailies that actually progress the story.
While you may think that dailies are awful content, millions of players do them because they are low-stress, casual ways to progress your character at your own pace.
Like a lot of posters on this site, you seem to be out of touch with most of the playerbase. You realize that many subscribers don't even have a level 90 yet, right?