The thing is, it's not as if there's no other live favorites in the current set. I mean, the whole second set is pretty much full of live favorites of the fanbase. So there's no reason they couldn't have chosen another more obscure song for the diehards that support the band instead of playing TSCO for the umpteenth time. And even then, there will always be *at least* a few live favorites in any setlist - DT has enough of those in their catalog, so it's not as if they need to stick with the same one every single time they put together a new setlist.
Anyway, it's sad they dropped two songs from the set, especially if it's due to the show's length, given what the length of their Evening With shows have been like in the past. But if it is to happen, I'd rather see TSCO get the axe more than any other.