Clearly the UK media is just full of anti-game propaganda.
Why are you being so aggressive towards the UK media? Have you been
playing video games recently?
Also, judging just by this article and paying no attention to the actual study, this looks like it would be subject to correlation-causation confusion. Games like Call of Doody attract aggressive people. It's possible that putting all of them together on a voice chat will encourage aggressive behaviour, too. As such, I don't think it'd be easy to conclusively determine the impact of the game itself.