Ithano not in weekly shipments but Quiggold is?

For that matter, I guess I'd like clarification on whether or not these two are supposed to be in regular shipments. They are in Chromiums, but never show up in shipments, and my understanding is those things are supposed to happen at the same time. According to the events calendar, Ithano should be farmable soon... so it's weird that he hasn't been in shipments.