On the AT-ST: I've seen a clip from what I guess is later in the game where you can see an AT-ST being crushed into a ball. Possibly that's just the result of a different QTE, but I'm holding out hope that it's just an upgraded version of force grip.
The demo I thought was pretty fun. The controls were clunky but playable for the most part. Not clunky enough to dissuade me from buying the full game at least! I'm pleasantly surprised as my expectations for the game were pretty... low.