One day, a bunch of EA executives were sitting around a table smoking cigars made of $100 bills when one of them said, "You know what's a tragedy? The fact that we can only charge people for a game once. DLC and online passes are great and all, but why can't we charge people for the same game over and over again?"
Another executive chimed in, "Yeah, Activision is doing it with their World of Whachamadingis, why can't we do the same?"
Then, an executive exclaimed, "I've got it! We can have Bioware make a game like Planet of Warmongers! If we make it a Star Wars game and hype the shit out of it, people will go crazy over it!" The executives then celebrated by swimming in the company diamond-studded pool filled with hookers.
So Bioware was tasked with making a Star Wars MMO. In the first meeting discussing this, one of the designers (who was obviously new) asked, "So, what should we do to make this game original and interesting?"
Another designer said "Hey! We don't make original or interesting games here at Bioware! We just give gamers the same reheated shit over and over while pretending like it's original and interesting. So what we're going to do is rip off World of Warcraft, add in the duologue wheel that we are required by law to have in every single game, throw more money than anyone can imagine at voice actors, and act like it's the greatest thing since sliced bread."
This is why TOR is an unoriginal WoW-clone that makes no real effort to do anything interesting.