Regarding the photographs in this wonderful book, I was suitably impressed. I don't think the comparisons to Donald Steel's books are fair, but I will make them nonetheless.
In DS's book Classic Links, the photos are indeed probably more stirring. However, they are predominantly of dramatic links features, such as closeups of dunes or wide expanses of the roling landscape. I LOVE those pictures, but I don't find them especially helpful from the perspective of golf course architecture - ie. I have a hard time noticing golf features.
In The Evangelist of Golf, by contrast, I think GB made more of an effort to capture architectural features, rather than broad shots of the landscape at NGLA, etc. Since I'm more of a GCA junkie, this helped me get my fix, so I loved these photos as well.
Regarding specific photos mentioned above at Yale & Piping Rock, I think a Biarritz is a really difficult concept to illustrate from the tee. At Yale, where the tee shot is so dramatic across the pond, I think it's almost impossible to get a good shot. I didn't fully understand the concept of the Biarritz till someone posted a side angle closeup of the green.
As I mentioned on a previous post, I think the photo on p. 98 of the 6th (Short) Hole at NGLA, GB did a wonderful job capturing the contours of the green, something quite difficult to do.