Fireworks are not worthwhile endgame content and i really want them gone

[Catwho]

Perfectly explained!

Interesting, it seems it's easier for the devs to create new kinds of inventory (Eureka's, Bozja's, Deep Dungeon, OC's) than to fix the main Inventory.

That's the nature of relational databases. It's way easier to add more tables than it is to add more columns to existing tables, from a migration standpoint.