Bummer! Now that you have them. I still hope you'll plant them and see how they do, they look cool!
Despite disappointment with their method, they might do fine. Removing them from pots probably helps with storage, and definitely makes them lighter for shipping = lower shipping cost.
For what it's worth, I've bought many many bare-root fruit trees and some bare root roses. They've all grown fine. I hope yours does OK too.