That match helped me identify the main problem I have with Marto. Not only is is a simplistic fanboy, as many have noted, but he's a bloody downhill skier too. With the (possible) exception of the Reds, he's all too willing to sing the praises of the expected "better" team and also all too willing to heap shit on the percieved "lesser" team.
This goes against every good broadcasting practice I can think of because even if it is a whitewash of biblical proportions, a commentator's aim is to make the game interesting and make it seem closer than it is, that the underdog has a chance to upset the expected winner or at least to make it seem like a competitive tussle. AFL commentators are particularly good at this; even when Gold Coast, GWS or Melbourne are getting belted by 100+ points, they focus on the small contests, about how the underdog is winning the small battles and what that means going forwards.
So yeah, not only is Marto an annoying prat, but he's just a damned shit commentator. Unless that's his assigned 'job' in the commentator team, in which case Fox Rugby needs to smarten up their game.