Other than that, focusing more on your initial post, the only flaw I can immediately mark is that there is a differences between a PnP and digital games. The story-driven approach can work wonders for a PnP DnD but can find much less success as a PC game, which are mostly dominated by violence and action.
I actually have to disagree with you here. Yes, a lot of games are about action, but there are many successful Adventures and the likes. Sure, the golden age of Adventures, especially point&click ones, is long over, but there are still some quite successful ones out there.
And considering the success of, for example, Sims, I think you underestimate the potential for peaceful games. As do many people.
