I'm on publisher QA side. Every so often, around this time of year, my company does closed internal playtests for games that are on the pre-alpha release candidate (usually it's the ones they expect to be blockbusters). Generally when a pre-alpha RC is selected for this, a very small subsection of the game is highly polished to give Users an honest preview of what the devs expect the launch game to be. Obviously since it's in alpha a lot of things will be changed and there are a lot of game breaking bugs to be found still, but the general experience should still be up for discussion if it was bad. I know it's possible to imagine a game in alpha as released, because part of my job is to give professional feedback to the producers without ever mentioning unfinished or bugged aspects of the game.