No, it's not about a trade off. The system needs to figure out what to update, and if it is safe to do. There was an article from MS some time ago on the topic.

No, it's not about a trade off. The system needs to figure out what to update, and if it is safe to do. There was an article from MS some time ago on the topic. Most of it has to do with shared dlls I believe, but the details are a bit hazy.