RPS have been in the possession of Multiwinia preview code for the last month or so. It's a slice of the game, playable against bots, and is the first anyone outside of the Beta have really had a chance to play. It's fundamentally multiplayer Darwinia, returning to the Future War idea which set Introversion along the road to what remains their award-winning opus.
And RPS thought the best way to introduce the world to it would be to take a casual stroll through a game they have just played, introducing features as they appear and talking about what sort of tactical gubbins are firing through their noggin at every step. And writing a straight preview is boring.