And here's where you're wrong.
This is an MMO being developed by Bioware, an RPG company, as a sequel to one of the most acclaimed series of RPG's in all time.
They're not going to forget the aspects of the RPG in this game, if anything, they'll build the game as an RPG and then add the features necessary to make it an MMO after, rather than the other way around.
You will have AI companions, full story campaign bits, etc. Not much like any other MMO I've played, sounds like grinding wont be a possibility.