You are not making a valid argument, not in any way, shape or form. It’s pure, irrelevant bullshit.
It’s possible to be completely unable to color grade yet still notice trends and write that you think they are horrible.
But you are not even talking about the author’s ability to color grade, you are talking about fucking web design which is a tenuously related field at best. It just makes no sense at all.
Critics do not have to be good at what they criticize in order to be good critics. Would Roger Ebert be a good director?
It’s astonishing really, a complete non-sequitur.