Do you think, perhaps, it is you who is biased? You sure seem defensive over anyone who even remotely criticizes the DS.
What do they compare DS games to? They compare them to good games. It's as simple as that. A good game is a good game is a good game. Visuals aside, you don't somehow lower your standards because it's a different format. That's fucking ridiculous. If a racing game on DS is not as good, gameplay wise, as a racing game on any other number of platforms, then it should be judged as such. We call this "not living up to standards." It's a very common way to make comparrisons, and it is absolutely warranted.
I've read the Gamespot reviews, and I can't tell you how I feel about RRDS (I've played RR64, but not RRDS) or Mr. Driller Drill Spirits (because I haven't played this one), but so far they seem to be giving a fair judgment of various DS products. Even if I disagree with a score (such as the Feel the Magic XY/XX score), they still give good reasons for why they considered it the way they did.
Feel free to disagree, but all these conspiracy theories your shouting about really don't hold up under even remote scrutiny.