Time doesn't always pass in the same rate, in Chaotic planes. Especially if the local Power in charge wills otherwise. Cayden Cailean is otherwise occupied, fighting Zon-Kuthon, but has still His local co-conspirators, and His plans laid in advance.
Pilar Pineda has been in Elysium longer than Hell thinks. Not nearly long enough to get the full tour, but enough to be shown around a little, appropriately attired and appropriately treated, to see massive crystal-waterfalls in which glasslike material flows slowly down from what look like leagues and leagues up, to sleep a little in a warm cavern lit by glowing edible moss, to meet interesting people and be mistreated by them in interesting ways.
Long enough to be told what Elysium believes about what Hell really is, how Hell really works, and have it sworn to her in the name of Good and Chaos that they're telling the truth to the best of their own knowledge. They're not Lawful, yes, but it doesn't mean they're all liars, all the time. There are beings with spell-like abilities here to rival great wizards, and one shows Pilar a glimpse of Hell as it really is.
To be clear, Pilar hasn't been here that long; this tour is being done in something of a rush.