I'm 94% sure I discussed this with Thyrzul and he wanted a bigger cargo hold.
I was unsure of how exactly to rebalance the Aurochs, Courier, and Tarvos, since all three were very broken.
The Aurochs was the single worst ship in the test, incredibly easy to hit, so it got some very large buffs.
The Courier has been made into something of a "freighter Bastet", while the Tarvos is a more moderately balanced ship with improved arcs (and a cargo hold that isn't absurdly small anymore).