I don't see how this is any different compared to Beowulf, Mosix, Amoeba and other mass-machine boundary-eliminating systems that were attempted back in the 90s

I don't see how this is any different compared to Beowulf, Mosix, Amoeba and other mass-machine boundary-eliminating systems that were attempted back in the 90s. Am I missing something that makes this better suited to the task of resource utilization across nodes?