Why Are Uranus (Sharkwing Requirement), Lua And Kuva Fortress Still Not Fissure Viable?

[Kylo.]

I would really like to have a reason to play Lua and Kuva Fortress other than Survival. Also I would really love to not have literally 2 viable maps on Uranus for fissures.

^{I'll come back on the 16th of January and post it again if nothing changed. 🍷}

[Nez-Kal]

Probably because Lua and Kuva Fortress are Lore Heavy, and Fissures are more Iffy when it comes to Lore. I don't know, only thing that makes sense to me right now.