Pirate factions shouldn't have capital ships.
Such is the same for the Mollys, Rogs, but it's unlikely the Scylla will be removed.
Factions like the Blood Dragons and Hessians are fine, considering they are in active war (the former could go without it's caps, though), but the Brigands certainly have no legitimate use for heavy hitters.
It defies the entire idea of striking fast, getting what you want and disappearing into the woods/fog/asteroids.