Yes it does, it solves the exact problem described right in the article. Before this change, there would be a seperate log-in process for Chrome versus every other google service (which normally all share your current login status). Now, your login status is shared between every google service including Chrome, as a layperson would expect. Previously people who wanted to be logged into Chrome AND other google services would have to complete the login process twice which could be confusing for novice users.