This is one of the core reasons why I started a blog over just posting more to Twitter or Facebook. First off, those platforms play a different role in sharing. Twitter seems to be mainly used for making jokes, posting links and creating conversation, and Facebook is... well it's Facebook.
More importantly, the ever-changing landscape of social media is frustrating to users. My site is controlled by one person, me. In 10 years, if it still exists, this site will look exactly how I want it to look, and do exactly what I want it to do. Twitter, historically speaking, will probably be dead.
Twitter needs to gain more users so it can make more money, and Facebook does a great job of doing just that. So, it makes financial sense for Twitter to make it's site look and feel more like Facebook, whether we like it or not.