wow..I agree with your premise...BUT, in this case they are just plain wrong with their scoring when it comes to these two lenses..
I agree that their lens reviews aren't great, some of the competition are better (especially photozone, lensrentals and lenstip) I didn't suggest otherwise. Where we differ is in the view that the reviewer is obliged to show deference to products that have better reputations.
Think about this, they are saying that Canon and their entire team of engineers, have spent many years developing the new and improved 70-200 2.8ii...years, tons of money...
In my opinion, the labor of canon's engineers shouldn't be a factor in the review.
Again, this is where we just don't quite agree -- you seem to think that reviewers should be required to show some deference based on the reputation of the product, the manufacturer, or the general public's prior beliefs about those two things. Nor should they be trying to fudge their scoring systems to make certain products look good.
In my mind, what DXO did here with these two lenses would be analogous to saying I've reviewed the golf career of Jack Nicklaus and have graded his career a "C+". I'm doing this because I have the courage to set the record straight about Nicklaus, and burst some bubbles.
No, that's just silly. I'm not trying to suggest that the reviewers criteria should be to oppose widely held prejudices for the sake of being contrary, I'm suggesting that these shouldn't be a factor.
BTW, for all the DxO bashing, I'll say this again -- there is noone who does better sensor reviews.