Conventional autpilot is like a zip tie on the throttle, only it deals in outputs (your actual heading) rather than inputs (pedals and stick)

I assume what they're going for here is something substantially smarter and more reactive to changing conditions than that. Something that can be used during the "unscripted" parts of the flight during which a) you're most likely to have multiple crew working hard b) you're most likely to be pushing the limits of what one crew can do.