Well, maybe that was a poor suggestion. But still, there are so many ideas the writers could follow... Yet we see the same thing everywhere: Mass Effect, Star Wars, Star Trek, Avatar, Starcraft - everything is always some combination of elements we have on our planet. For me personally, it is quite an immersion breaker, when I land on a planet 2.5 million light years away from Earth, and see what looks like "Earth on steroids".
Regarding races evolving to be space faring, the only race I would imagine it would be hard for is the Hanar. I suppose they had to create an immense amount of automation to be able to build anything at all.