Some people don't give a damn about the story behind games. All they want to do is play the game, which is fine because that's basically what they should want to do when playing a video game. A heavy intricate story that requires gameplay time to express itself as an onslaught of cut scenes robs that gameplay of it's value. Basically, your video game isn't a game anymore at this point, it's a movie.
Nowadays games seem to lean more and more towards a storyline instead of good gameplay, promising bits of storyline as a reward for completing portions of the game. Some people couldn't give a stuff about the story, they just play the game for the challenge the gameplay offers. This might seem strange to some of you but that's what made the old arcade games fantastic as well. You didn't have a huge storyline behind Asteroids for instance. You were an A shaped ship that had a single mission, blow up all the asteroids, get a high score, see how long you can survive.
If you argue these games were "simple minded", well that's the entire purpose and point of video games. It's a quick escape from a rough day of work, a fun time waster. Anything more complex then that undoubtedly has problems being a good video game.
