Graphs and measurements can be important - but they are not the be all and end all. I remember reading a long review on Audio Science Review Forum that gave an exhaustive analysis of a myriad of measurements and then made conclusions and recommendations based on those measurements. Nowhere in the review did it mention how it sounded. It left me scratching my head in wonderment.
Imagine a restaurant review that tells you how the food was cooked and what it looked like, but never mentions how it tastes.