@TDS: I think you might have misunderstood them a bit. They are interested in exploring ways to tell stories via games, aka games as a storytelling medium. And this is a blog post analyzing different types of storytelling found in games and their possible applications and validity within their particular goals.
They're not claiming that this is how games should be made or that all other approaches are obsolete.
EDIT: guess I left my tabs open for like 4 hours before reading and replying again. Silly me. :3