You missed an important point of what I was talking about: I was referring to the Suite / Sky class perk of not needing a reservation for any show - they see your purple Sky class seapass card and just wave you in and over to the reserved seating. Same thing with the employees guarding the reserved seats: they need to see that specially colored Sky or Star card to let you in to the reserved row. If you have a reservation to a show, then the band is enough to scan you in.
My son tried going to a show without his seapass (only the wristband) and was told he couldn't come in without the actual seapass. Again, because he didn't have a reservation (because we were sky class.)