It's my thought, that other than mentioned above, it limits one to use the information. By trying to copy what tools and techniques a photographer used you limit yourself to the status of a mimic.
By knowing why and the photographers thoughts, a better impression can be gained. You also have some understanding of how to approach a similar subject or situation, whether to make it different or express a similar attitude.
That's the beautiful part of Ansel Adams "Examples," the stories and recollections. His impression and thoughts at the time clarify the image. By knowing the values and where they were placed, you can calculate the rest of the expossure. He usually tells his development, N, -, or +, so without giving you his development time, he tells the experienced photographer what to do with scenes like that if they wish to make something similar in expression or values.
He does the same in his Basic Photography series, which makes it a more useful tool than saying "I shot this at f/8, 1/60 and that's how you do it!" Remember, in photography, there is no true right and wrong. Right is what works for you.