If you want the same features as a 7 year old game you need to remember that they have tuned WoW for 7 years and implemented lots of content, for SWTOR creating more classes, quests, endgame content such as raids or more fine tuned PvP is going to take time.
While you use the "why cant they implement stuff thats in a 7 year old game" you miss the whole point that this content takes time to develop. All of this is going to be added in due time, but they cant just release thousands of more quests out of thin air, since this game, compared to for example WoW, actually has great storylines for the quests it might take even longer.
What would you rather do: Postponing SWTOR release date with 3 years and expect more content or actually enjoy the game and the current content right now? While waiting for more.