I'm not sure I see it the same way. In 30 years, humanity went from colonizing our own system to having more than double the worlds of the asari or turians, and having a military strength nearly on par with the turian fleet. In 30 years we accomplished an embassy, Spectres (2 of them), and even a councilor that some races never even got close to in centuries. I'd argue it's very human-centric.
As for WoW, humans are just generic. They tend to be in most RPG's. D&D even says "the most common and general adaptable race, they have no specific strengths or weaknesses" (paraphrased). I'd rather see more fiction where we're at the back of the bus instead of the ones leading it.