They demoed it quite prominently onstage when they introduced it, and the screen says "Hi-Speed Scrubbing" when you start scrubbing (and changes as you move dow

They demoed it quite prominently onstage when they introduced it, and the screen says "Hi-Speed Scrubbing" when you start scrubbing (and changes as you move down). It's not the most discoverable feature ever, but it's not a hidden Easter egg.