Shipyards is widely used to print builds and other important town requirements. I believe shipyards should be allowed to print any blocks (excluding high-mcmmo blocks such as ores) onto nations, meaning allow any block to be printed but not to be piloted on nations as a shipyard.

Conclusion being that for the sake of good looking builds, allow players to paste literally any block onto nations as long as its not ores, promotes exploitation and requires the resources for it.