For what it’s worth, people don’t generally gift Amazon copies of books when they can send out epubs. A previous Kickstarter campaign for Dragonsteel also fulfilled in this way, I suspect they all have. Have you seen it working differently elsewhere? Why did you think it would work like that here?
I’ve got them loaded up on my reader and ready to go for my holiday next week - dropping a comment so I can try and remember to post my impressions!