The idea of “flexible” is the core design pivot for t3 ships, dat is something ccp won’t change for eternity.
Plus, there are numerous of specialized t1 industrials for alpha to choose once they are upgraded: Kryos has its mineral hold; Miasmos has its raw ore hold; Epithal has its pi hold; and hell, hoarder even has a specialized ammo hold!
And if you think dat is not enough, you can always use a Rabisu to cloaky haul some corpses.