The downside to hasty firearms law changes?

Police have confirmed the person accused of taking 11 guns from Palmerston North police station last Thursday got into the building through an unlocked door. The deputy Police Comissioner Mike Clement says those firearms "weren't in the intended strong room, which the process requires." Is this kind of thing what ACt leader David Seymour was worried about when he criticised the haste of amending the firearms laws?