Funny how you like to generalize...
I came to TOR thinking the story would be KOTOR / DA1, where I could change the course of my class quest if I went a certain route. I also cam to TOR thinking that the class stories would be addicting and very engaging, like that book that you can't put down. But, no, that's not the case.
If you ever play a smuggler there's a MAJOR plot twist, but the execution of it was horrible. The entire REASONING behind the plot twist was just BAD (also played a Jedi knight, who is SO FREAKIN STEREOTYPICAL!) .
So, now I'm not playing TOR anymore since these stories were just not as engaging as their previous products.