Remember how Nautilus was born?
Nautilus needed to be stripped and rebuilt anyway. It had too much "framework." Does anyone even remember how Nautilus came into existence? It was written by a startup called Eazel which came into existence during the dot com boom, and they had this "wonderful" plan that they were going to sell add-on services on top of Nautilus. When the dot coms all went bust, Eazel faded into the night and we were left with the hulking colossus of Nautilus. And all we really wanted was a file manager. It's ok to strip it down and focus on the core functionality that a file manager needs to have.