I see that the author has a point, even if I don't agree completely with him. I'm not sure why he rates IWD higher than BG. Yes, he mentions PS:T, but that game was very buggy on release, and at least the German version needs a fan patch to run properly. IWD had a very nice atmosphere and a cool soundtrack. The multiplayer mode worked much better than in the Bioware titles, which made it very suitable for a dungeon romp with friends. Part of the reason for this suitability was the lack of a strong story with strong characters. Whether you had one or many main characters didn't make a difference. I preferred the involved stories of the two BG titles.
But this aside, I see that Bioware recycles the same story and the same characters over and over again. I also see the point that their dialogs often only give two options, a grotesquely selfless option only saints would take, contrasted with an evil option that looks retarded in its pettiness. This was very obvious in KotoR. Strangely enough, the game had an odd fascination for me, nevertheless. For me, they managed to make the Star Wars universe look interesting, and the story, though not revolutionary in any sense, sucked me in. I preferred KotoR II's gray areas, but the latter had other problems. If you look closely at KotoR II and ignore the badly botched last third of the game for a moment, you will see that the story doesn't really make sense. It was a good idea not completely thought through.
Which leaves Jade Empire. I seem to read different review outlets than the author of that opinion piece. The reviews I read didn't really hide the shortfalls of the game. I always took it as targeted for the console audience (similar to later games bearing the BG title), so my expectations were not too high, anyway.
I don't know anything about the latest titles.