Indeed games like WOW, Planetside 2, SWTOR never worked as they intended ....
WoW and SWToR certainly didn't.
WoW changed so many times and core design principles of it alongside it.
I stopped playing WoW precielsy becuase I got fed up with the way Blizzard kept messing up and ignoring the data everyone could see while trundling along before they at some point would say "woops, looks like everyone was right, we'll just change things, but we will do it our way" and then continue to mess things up. The fact that they removed the words "no-one is telling you how to play" from their own webpages at some point tells a story in itself about how their design goals changed after release.
SWToR more or less crashed and burned in my point of view. It was a nice singleplayer MMO, as long as you didn't run into the bugs. But once you got past the campagin stories while leveling up, there really was nothing left in the game. And even the story made zero sense at some points (like getting light points for getting someone to follow the dark side...). SWToR also had an unforgivable 'wall' of being unable to stop your account if you lost access to it (which happened to me). I literally had to threaten them with court while procuring their own responses as evidence of knowledge of our communication if they did not stop my account. So yeah, I doubt that game worked as intended given the amount of bugs in it.
I never really played planetside2, so can't say anything about that.