You could be forgiven for expecting a full-site skin for 1UP, or a week-long series of “developer diaries” on IGN - that’s what every other game company out there thinks makes games sell.
Valve is in the midst of a media blitz at the moment - not that you’d notice, since their idea of a media blitz is secretly launching a complex alternate reality game, or emailing single novelty screenshots to six different media outlets.