I think what they have really done is give every petty thief in the area a “road map” of what houses to rob. If you are a thief, do want to enter a home of a gun owner? The non-gun owners should just put a sign on their doors, “Rob me”.
Actually, they've given thieves a roadmap to where they can almost certainly find guns to steal. The other houses simply don't have "legal" firearms. As we've seen on numerous occasions, anti-gun politicians own firearms to protect themselves and their families. "Guns for me and not for thee!" The same holds true for many on the left.
The real problem is for people who worked hard to remove all public references to their location. Many owning guns do so for legitimate worries over stalkers, abusive exes, witnesses, etc. The requirement to register a gun came with an understanding that, while technically public info, the state would refrain from releasing that information for frivolous purposes. Now their addresses etc are just a Google search away - and a short drive for those intending violence upon them.