I've heard that argument before and I don't understand it. Dragon Age II, like Mass Effect 2, does not "dumb down RPG aspects". Quite the contrary. It focuses on genuine roleplaying-game elements, i.e. "playing a role", while downplaying all the unnecessary and outdated baggage that computer RPG have accumulated throughout the years (constant numbercrunching, insane inventory management, byzantine game rules). As a lifelong pen&paper gamer, I feel that those two games are much closer to an actual RPG than any old-fashioned computer dungeon crawl.the dumbing down of RPG aspects, the Mass-Effect-2-iness of the whole thing
At that point you get into semantics of what role playing means. For some, it's customizing a character so that they have very specific stats and can perform a specific role. For some, it's the lore.
I suppose I wouldn't have a problem with BioWare focusing on pure gameplay (in both games) rather than the abstraction of stats and armor modifiers, but the stories in both essentially devolve into choosing between a binary. There's just no much nuance when it comes to the storytelling.
Of course, the real problem with DA2 as a game is that it simply recycles environments over and over again. It's hard to believe in a large open world when you go through the same caves every other quest or so.
