I believe all the wristbands have RFID chips inside them (not barcodes). You should be fine. Package probably had issues going through the conveyor belts because of its irregular shape. This happens and that may be why the package appears damaged. I wouldn't worry about it.
The platinum tickets are only wristbands so not sure what you mean about paper tickets? Here is the link to activate the wristband on Shaky Knees website. If you run into any problems, now would be the time to contact StubHub.