I tend to agree with you that allowing the community to keep games running would be a more desirable outcome, but I don't believe California could make such a law. As I understand it, reverse engineering is already illegal federally because of things like the DMCA. California can't just make the DMCA not apply in this case because its not a California law. However they can pass consumer protection laws making there be consequences for abandoning a game when the consumers are in California. Given the alternative is probably do nothing this does seem good.