Every player had equal chance to get that stuff if he was subscribed at the moment.
It wasn't like, 'Hey, if you want a legacy gobbue be one of 30 first players to complete the quest!', what a nonsense. Yet it's somehow OK for these new mounts.
This is the first item which people will likley not get even if they are trying, because 30 per datacenter is too low.
I won a Bluebird earring in a forum contest before. But I'm not selfish like people I see here and dont want it to be one-time exclusive, everyone should have a chance to get it in future contests if they keep trying. Such rewards should remain rare but not missable.