Google cares because they didn't want the info made public. The judge cares, and everyone else should care, because revealing confidential information in court

Google cares because they didn't want the info made public. The judge cares, and everyone else should care, because revealing confidential information in court should never be tolerated, no matter how trivial that information might seem. If people get away with it, it undermines that principle and makes it more likely to happen in the future.