It's a golden age for gaming. We have more games, more readily available, for less cost, than ever before. "Mindless grind against uninteresting enemies" doesn't cut it in comparison. I could be playing Civ VI instead, which is, you know, fun while it takes 30 hours to complete a single game.
People aren't complaining that it's not being instantly handed to them. They're complaining because it's coma inducing, simplistic, uninspired, and buggy. People who can't tell the difference and think that something that would basically fit into an iOS F2P grinding game is good enough for a sub based MMO make me laugh.