I too am in agreement with this school of thought.
while it is true that the song has been "revealed" to some extent, it is still odd that people are putting together setlists off the basis of written word (reviews, teasers etc.) we have no idea of the kind of "feel" of each song.
this is a nice little game for setlist speculation, and who knows, some of these may be coincidentally accurate, but I don't see how you can build a full setlist when we haven't heard the songs