I think the point was that they didn't say they wouldn't do group crafting like making cakes it was just that they wanted the Cake to have a purpose and a reason why you would be making a giant cake.

They could have group crafting but it needs a purpose I guess. They could use the Companies system and have groups of crafter's build ships for the naval fleet, forge weapons and create armour, repair and build defences, cook food to keep troops fed and morale higher. Even gathering classes could help by gathering supplies and materials.

The only problem is they need a reason to do this, I guess a war to fight would be the obvious answer so hopefully that will all be on the horizon soon with the coming darkness.