I do think there's way too much faux realism in video games. Sun Tzu said that the way to win battles was never to fight on an even playing field, which is exactly what Camperstrike and Tent Combat were all about, when Quake III was pretty much down to your actual ability to play. In single player, you end up with stuff like Medal of "Honor" (2010), where you spend the whole game shooting at specks in the distance, and really, how is respawning more realistic than regenerative health or pick-ups anyway?
You could have the Tour de France on open roads on the basis that "in the real world there will be traffic around", but it would be pointless, because then it's not a race, it's a roll of the dice. In fact, track cycling, and time trials, which are in the most artificial environment, are also the fairest and most dependent on athletic ability (as conditions and tactics are taken out of the equation).
Video games are supposed to be an artificial environment. Simulation can add to the experience, and I much prefer Race Driver to any arcade racer, but it only works to a point, and I think realism is a massive gimmick in FPSs.