Just to note something that may relate to this discussion. This is purely speculation but dark agartha was probably in the works LONG before it’s release and by that I mean close to the start of SWLs launch. If I were a betting man I’d say that it was close to completion and the team said “Hey guys Halloween is over and we should try to keep the momentum going till Christmas”. Luckily they had an almost finished Dark Agartha tucked away that could fill that gap quite nicely.
The reason I say this is because my guess is there making do with what they have. Sure there could be some modifications made to the AP/SP requirements and accessibility but as far as the style and type of content goes it is what it is.
Regarding difficulty and AP/SP requirements I think it’s quite low on both of these elements but alas you have a story/casual focused game with content that requires some focus on mechanics and “skill” for lack of a better term. When SWL launched this would have perhaps been a bit more fitting as you had a large population of players dedicated to the “grind” but things don’t always work out as planned and honestly it was this or absolutely nothing until Christmas.