The branded pack was the first pack I purchased. I was happy with it, and realized it was excluding some mounts. I never imaged that I would have to pay more gems just to complete the Skyscale portion of a set. I understand sets like this to complete the rarer license sets; however, including pre-existing bundles exclusively in another unassociated bundle rubbed me the wrong way. It would be nice to know that if (when) the sets are completed, those who purchase the set will have the option to purchase the remaining items individually.
It would be nice to see Anet take a customer friendly stance on this.