I would say that, for example, I liked Starcraft's zerg and protoss. They are very alien (in every sense of the word) species with their own varied cultures. What I don't like is middle grounds. You either make them "human" or you make them truly "alien." ME aliens look alien but act human, and that makes me lose interest in them.
I am totally interested in a race of horned giants with some draconian theme mixed in. But I firmly believe that when creating a fictional race they have to either be "human" or "alien" as per the definitions described above. If you roleplay them, you can no longer consider them the latter, since the point of it is that "alien" races are not suposed to be relatable.
I can see you point here about the Qunari not being truly 'alien', but I think it's fair to point out that:
1) all of the races in Dragon Age have been living on the same continent for the past several hundred years. There was bound to be some interaction between them and thus their cultures will probably not be as different from each other than, say, two different races which lived in isolation on separate planets.
2) biologically/physically the races in Dragon Age would be reasonably similar because of the environment they live in - e.g. They need to be able to breathe oxygen, survive certain climates, humidity, etc. so they can't be as variable as say, two different races which lived on a planet covered entirely in water and and a planet covered entirely in lava respectively.
So whilst technically the Qunari, Humans, Elves and Dwarves will look similar in some ways, there are many ways in which they can vary - for example a Rottweiler looks very different from a Chihuahua, and both look different from Poodles or Pomeranians, despite all of them being domesticated dogs.