User blog comment:Hermione Chase/"The Blood of Olympus" Expectations/@comment-24404080-20140304192821/@comment-3146930-20140305052050

Maybe it is the difference in the threat. Gigantes are considered to be more dangerous then the Titans, as well as Hazel almost raising the first Gigantes that would allow the others to rise. Hazel did almost raise it, but sacrificed herself in order to prevent him from rising and stopping Gaea's plan for the moment.

To be fair, we don't actually know that Luke was sent to Elysium. We assume he did, but we never find out his fate as Artemis only made Hades promise that her Hunters would gain Elysium and we never hear what happened to Luke when he died. Maybe it is like Heaven, where no matter how bad you were as long as you sacrifice yourself for others, you're in no questions asked. It is entirely possible however that he was sent to Asphodel.