It's about disclosing that you worked on the game in the "review." It's news worthy because in journalism (in any fashion) you should make notes about any type of influence that may impact what you're talking about. Like being paid or employed by the product you're giving an objective review about. Of course it's not a "new" thing, but when you get caught people try to make a big deal because... well it's a big deal in the sense of journalistic integrity. Same reason why you shouldn't believe reviews in things like Game Informer or @Gamer, because the relationship is too close to those who directly benefit from those reviews.
Meh. It just seems way too much like tabloid news to me. Never cared much for it. "Oh my god, Charlie Sheen is a monster for drinking all that booze and dating two incredibly attractive women at the same time!" Firstly, that's the dream of every heterosexual man I have met. Second, why should anyone care what someone does in the privacy of their own home, even if its a television star? Why should anyone care that [insert celebrity here] and [insert celebrity here] are getting together, getting married, divorcing, or breaking up? Why should anyone care that a celebrity is doing things that hundreds if not thousands of nobodies have done before? Tiger Woods cheated on his wife? If it was ANYONE ELSE who wasn't a celebrity, it wouldn't be newsworthy.
It sickens me that people actually believe that WHO does the act is worth more to report on than WHAT the act actually is. If you want to believe a game review, that's your prerogative as a gamer. If you don't want to believe it, that's your prerogative as a gamer. But yeah. Just because the review was posted by an employee of the same company who made the game doesn't necessarily mean that it should change anything. So a guy promotes the game his company comes out with. So what? What's the big deal? I think people should believe what they want to believe and not let anyone discourage them from what most would call "ignorant bliss." Its like believing in Santa Claus or God. If you believe, that is perfectly okay, but don't shove it into the face of skeptics. And those who do not believe, that is also quite acceptable, but don't try to force the believers to disbelieve. Both acts are equally arrogant, selfish, and rude.