That quote is taken a bit out of context. What he means is that most pretty much all of the story in games are told during cutscenes, i.e. when the player is not actually playing, just watching. Generally, if someone just pasted the cutscenes together you'll have the full story in pretty much all it's details. In other words, the gameplay itself has little to no effect to the story.
What sucks doing this is that gameplay and story pretty much interrupt each other constantly until the end. Especially if there are loads of cutscenes with just short bits of actual gameplay.
Thinking of it, this might actually be an interesting, yet possibly good way to make a movie based on a videogame: Just cut out all the playsections and paste the cutscenes together and voilà: Full movie done with minimal effort and budget
