This isn't the doings of the developers, this is the doing of the community who in an attempt to keep their hopes up, make excuses about their favorite piece of media being or soon becoming the greatest piece of entertainement ever, e.g. Half Life 3. Aforementioned hopes are then usually crushed and they go to metacritic to rate the item a flat 1 or 2.
James: ''It was overhyped to all-hell and in development for like 10 years, ofcourse you were going to be let down.''
Adam: ''Classic case of Half-Life 3 syndrome.''