Funny, I thought there were so many more things to do.
For the average casual player, playing an hour or 2 a day, with a couple raid nites per week...no, there's not much to do. There's dailies and LFR. Log on, que for LFR, run dailies. Endless, endless dailies. Oh, and since you're in a que, can't group to do anything else. So "Hello, solo play!" The more "so many more things to do" things you do, the further behind the gear curve you get...unless the RNG gods love you. If they don't smile on you, you're left running in place. So what's the point for those people to play?
Dailies...some on my toons on Stormrage, one of most heavily populated Alliance servers. Participation rate on island last time I looked; 27%. That's how popular "World of Dailies" is. People showing up, killing a rare for a key, finding a spawn chest, running the treasure room...and leaving. Even that won't last for long...treasure room is mainly crap. A little gold, some rep tokens for worthless KT rep, elder tokens that are only useful to run the treasure room/T14 loot rolls, and a very rare gear drop if the RNG god smiles on you. Soon to be utterly futile since so few alts are getting geared/played anymore.
This expac, I've only leveled 4 90s, and really only play 2. The rest are still 85 and parked. No time or really the inclination to play them and do more, more, more of the same lame things. I haven't even bothered to level toons with useful profs, like my enchanter and alchemists. Leveled their profs by the miracle of "Discovery" and parked them. Would I like my enchanter to have the wep and wrist enchants? Absolutely...but not badly enough to level him and go through the same lame, tedious rep grind yet again. For most profs, no more chasing down rare drop patterns! Discovery takes care of it! Raid drops? Who cares, when they're actually useful, largely too expensive to make/buy, and besides, blink and they're obsolete.
Is there plenty to do? Absolutely. But the way it's designed now, there is little point to most of it, and even less time, because the grind is no longer truly "optional". Heck, just getting geared well enough to "visit" current content to farm mats, hunt, and tame pets and mounts requires going through the grind.
The Grind is now the game...not something you do for the nifty neat optional luxury stuff. Nat Pagle is probably the only true "optional" grind for purely FUN stuff left.