[mthoms]

I also agree. But it occurred to me that the authors intent was probably to create a sort of reference guide that could be referred to over and over in order to apply the techniques discussed.

In that context, the use of lists makes a lot more sense. What's interesting is that the article also seems to be written in conversational style while at the same time intending to be a re-usable reference. At least, that's my take on it.