What I mean is they took away almost every productive activity, either removing it entirely or turned it into something you could only do in tiny amounts every x hours/days. Almost everything is centered around the garrison which is probably the most tedious thing that has ever been in WoW. After the first couple of weeks, there's simply nothing left to do if you aren't a PvPer or an achievement collector or some shit. Actual progression gameplay has been dumbed down to the level of mobile gaming, aside from raiding.
And even raiding is a bit dodgy. My guild (former guild; I quit WoW last week) is a fairly typical raiding guild of veteran players who have become adults, so not super hardcore but still serious about what they do. Our level is herioc raiding. No particular delusions about being mythic trailblazers, but good enough to perhaps do some mythic bosses after they're no longer competitive content. Basically, a slightly above average raid guild that doesn't think it's hot shit. And on the second raid reset, we cleared all of normal and all of heroic in one session. And now that's that. All of Highmaul, excluding mythic which we aren't in for, is cleared in three hours. We don't outgear it, we aren't mythic-level players outskilling th econtent.
But the real issue is that there just isn't really anything to log in for during the day. You organize your missions and work orders, and then there's nothing else to play for if you don't want to collect all the mounts or some equally arbitrary bullshit. I used to be able to continue doing dungeons for VP/JP. I used to be able to progress by working on reputations. I used to be able to work on professions, obtaining recipes and gathering materials to craft shit. I used to be able to do dailies (I hated the MoP version, but not because dailies are bad by definition). I used to have scenarios, useful JP rewards, farming tradeskill materials that are actually worth something instead of both useless due to crafting being wrecked and worthless because of the mine and herb garden.
In short, they've taken away almost every reason I had for playing the game and replaced it with an ill-conceived Skinner's Box experiment that only the most na?ve would regard as worthwhile gameplay.