Yes they copied WoW which I played for 6 years as well and got tired of it.
So what? Everyone is familiar with this setup (UI, Tree's, etc) and even if they are tired of WoW and want something new, its easier to get into something new with your feet hitting the ground running, not crawling. Makes it easier to get into the game if its familiar.
I will have to point out FFXIV out to you guys, it is a vastly different game and a bunch of people tried it, some liked it and staid others ran for the hills after trying it. I played XI and then WoW and then tried XIV, while I liked the game they made too many mistakes with it. XI was a special game by itself vastly different than all the other games out there, SE tried to make a different game with XIV and it failed miserably, instead of taking the best of XI and dropping the crappy stuff they tried to reinvent the wheel.
Dont reinvent the wheel that's just dumb, improve the wheel make it better but underneath it should still be a wheel. That's how you can see TOR it did not try to reinvent the MMO it used what was out there and added its own flair its own touch to it all. If you go to the store and buy a round wheel but decide next time to buy a square wheel and find out ti sucks then you will go back to the round wheel. Ok maybe the analogy is not that great but you know what I mean.