The author says that the "trouble" with measurements is that their meaning is difficult to convey to their readership. That's all. So, they prefer adjectives (words that describe).
Measurements are one way of communicating knowledge. Words are another. Both have their virtues and limitations. So, philosophically, TAS.. doesn’t really have a preference for one over the other....We choose to focus on words because our experience is that they are one level closer to how readers think about sound than measurements are.
One must end such a profound philosophical and patronising statement about their readers with a preposition.