Their last trailer was a strange choice for "gameplay" because I found it more like an atmospheric or mood trailer, so more of a teaser, in fact.
But I reeeeally liked the first part. One of the best "walking simulators" – by that yardstick, though, we could reduce any game to single noun or noun compound, with most RPGs being scavenger hunts – I've played. Even the gameplay was good for what the game wanted to accomplish; it was straightforward and narrowed down to support the main focus: the story. No unnecessary perk system, no crafting, no increased difficulty to make the game about having a challenge. I can see why some people would be disappointed or expected... more. But with so many games blending genres and try to cramp so many mechanics into a single game this was and still is a welcome approach.