What the hell had happen to the gaming industry? from an outsider gamer like myself. My viewpoint is probably because,-- of trends. Why keeping the core gameplay when game companies can band-wagon on a particular trends that's sure to bring in profits at the same time attracts new gamers and fans. So in over time, the intended original gamplay gets passed on and wasted.
I think that's what happened to Splinter Cell(Conviction). Oh my goodness, i hope i'm wrong.