I'm still sorta on the fence about Star Citizen ... on the one hand it has all the signs of a big time scam ... on the other, they are actually making steady progress. Slow yes, but steady nevertheless.
Yeah, progress. Star Marine was supposed to be a standalone module, coming in "weeks, not months", then it was "already in game", even though no mechanics, almost no models, and no maps were included, and now it's touted as a standalone module again, even though it's "already in game". At least their SC 2.0 was better, but after 9 months since its release the game doesn't have quite a few features from the "live demo" (no manual repairing of ships, no engineering console, no boarding a ship through damaged hull), and it's unbelievably buggy - walls and spaceships hulls are merely a suggestion, weapon models don't load when you aren't in a spacesuit (and you don't need it when going EVA), character models deform into Lovecraftian monstrosities, ships explode in quantum drive for no reason.
Gamescom presentation last year was bug free, and it's live implementation makes Big Rigs: Over The Racing look polished (and it was borderline unplayable on release 4 months after a demo). I see no reason to believe this year's presentation wasn't any different. Parts of it could be prerecorded, parts playable in game, but buggy in 8 out of 10 playthroughs, parts of it 'on rails'.