Quite the opposite is true. Despite the cinematic nature of Mass Effect 2, in comparing the dialog systems of the two games BioWare co-founder Dr. Greg Zeschuk told me that Dragon Age: Origins packed over twice as many dialog options. Why so much? In Dragon Age a large proportion of the potential responses are based on the race and class you've chosen for your main character, their skills and demeanor, and the decisions made in developing the relationships. For every group of possible responses you see on any given play through of the game, there's probably an equal number hidden to handle all the other potential combinations as Zeschuk explained it.
For many fans that's sure to pique their interest to make another run through Dragon Age: Origins while waiting for Mass Effect to arrive next month.