I agree with them. I tried to play this game, I tried to like it, but instead of a fun and engaging game, I found a tedious and dull game that just didn't engage me. It has some good elements and some good points, but for the most part I had to force myself to continue on with it. Not so for DA:O. From the moments I started it, to the moment I finished it I was engaged and had a good gaming experience.
To each their own, and your opinion on how you feel about the games is valid.
But for Bioware to basically deny the fact that there is a large amount of game players out there who have been aching for a game like BG2 or NWN speaks volumes to the fact that they have lost touch with a large base of their fans.
D:OS is not perfect, by any means, but it has filled a role in the gaming community that has been absent for a long, long time. If executives at Bioware can't see that people still want games like this (I think Kickstarter has done a good job of proving this, with this, Pillars of Eternity, and the new Torment game all getting absolutely huge backer numbers... well, I don't know what else could bring Bioware back to their old fans, because they are lost.