Luzacs final work was "Brief over het gevaar, gelegen in de verandering van de Staatsregeling van een eenmaal gevestigd Bestuur" in which he defended the stadtholderian regime that was established after the Prussian invasion of Holland and "guaranteed" by the Act of Guarantee of 1788. But he lived long enough to see the Batavian Revolution of 1795 and the foundation of the Batavian Republic, which he must have detested.