if you haven't seen, their shows are relatively complex and not exactly jam band status of impulsively picking tracks. it probably takes months of setting up and the chems have no real incentive to switch up the shows for the us audience from the europe ones. I think they provide an excellent set list full of amazing transitions and no something they can plan every day. The encore is more flexible since it doesn't have to be mixed like the rest of the set. The shows do vary in some stuff regarding the work they do on the stage, which does reward the highly intrigued live collector, but the song order is usually the same, with the adding or dropping of a tune once in a while.
how we know this is from previous years dating back to the Exit Planet Dust era. They did last tour switch the set list for a series of brixton shows, but those were kinda far away from the main tour