I can tell you that I never encountered a real user who cared about antennagate, but my Apple-using friends are talking nonstop about how awful the new maps are. Antennagate was something that affected essentially nobody, but got picked up as a great story by the media. These maps deficiencies are affecting a lot of real people, and making some of them pretty angry. Most people became aware of antennagate from the media, but everybody I've talked to has learned about iOS 6 maps either from using it and finding it to be sub-par (which is how it happened for me) or talking to people who did that.