I do get where you're coming from, but I don't agree. With the CF+S3 combo you now need to choose which sharing mode to work with S3 (there are several different ways you can link CF to S3). Then you have the wider configuration of CF to manage too. And that's before you account for any caching issues you might run into when debugging your site.

If you know what you're doing, as it sounds like you and I do, then all of this is very easy to get set up (but then aren't most things easy when you already know how? hehe). However we are talking about people who aren't comfortable with vanilla S3, so throwing another service into the mix isn't going to make things easier for them.