So far all location-specific challenges I’ve seen have been on the Exiled Lands map, and everyone should have access to that. Are there Siptah-specific challenges? If so, that’s unfair.
My point was - forcing players, playing on Siptah, to log on into EL server to do EL only challenges, and then log back to Siptah to continue their game session is an avid example of wasting players time. Especially when there is like 90% possibility you will get another EL challenge during the same game session.