Why no Duck? You can’t USE The Duck: It only sends AE a series of pointers to the original media. And where’s that original media? On the other machine.
I’m afraid this proclamation is incorrect. You certainly can use Automatic Duck to import a Final Cut Pro sequence on a different machine, we do it all the time in our shop. The media referenced by the XML simply needs to be available to the After Effects system, whether copied locally or visible on shared storage. I hope that helps.