As far as I know they scanned the ME1 hero characters - Shepard, Kaidan, Liara etc. Then for ME2 and 3 I'm not sure if Kolby Jukes has used scans for Miranda or the TV reporter woman. As for the other NPCs it was a cost issue I think - spending an hour in the face generator can never be beaten even by scanning.
So its a moot point.. Because you don't like it, and feel its beneath you to do? I don't see the logic. I really find it hard to respect people who refuse to do LODs, or cleanup, or anything else that might seem mundane. It is a job after all, its not all going to be hero assets and sunshine.
That's efficiency. CD Projekt does not need a permanent CGI staff for the 1 trailer per year maximum that they need. Platige does not need a scanner for the occasional project that involves creating realistic humans (they work primarily in commercials). All 3 companies specialize, and do that type of thing better than a…