A wife taking the husband's name is still the norm here. I think that some people feel they need to explain why they didn't so that other (more judgmental) people don't just label them as "weird" or "femi-nazis" or any of the other disparaging labels that people put on others when they don't have the same opinions and ideals. I think this change is a slow process and will not have 100% acceptance. But I have no doubt that the time will come when that choice will no longer be questioned.