Strictly speaking, all these blueprints belonged to the public property and technological secrets of the Church of Steam, and the missing part was also the Church's management responsibility.
This time, the Church of Steam lost a skilled craftsman and many important blueprints, considered an extremely heavy loss in terms of both manpower and intellectual property.
Moreover, if such blueprints leaked out, there was no need to say much about what situation it would cause. Gun manufacturing technology falling into the hands of gangs or hostile organizations would be a disaster. The appearance of homemade guns in Dune city this time was inescapably related to their loss of blueprints and lax management.
