I'm not an Apple user myself, but isn't what you describe something good for web developers as it ensures that your users can only have one version of Safari, as opposite to lots of older versions of Chrome, Firefox and IE?
Safari and IE are basically in the same boat of users being on old oses also being stuck on aging browsers. It's just that IE has been so much worse that we haven't had time to start complaining about Safari, but don't worry, that's coming very soon.