Well, the way bosk reported the "take a look at the setlist" conversation, the impression I had that the question made to him "What do you think of the opener" seemed to imply that they wanted to point out what a ballsy and unusual choice it was... which would made more sense if the song was both long and a closer kind of song, rather than just a random middle of the set fast song moved at the beginning.
To point out "Look, we open with BAI" makes more sense to me than "Look, we open up with TDEN / Panick Attack".