The only thing I could make out in those videos is organic .... robot .... AI .... therefore living robot, those .... leave alot of room for imagination.
I think likely those xenobots just gather material that is the precursor material to make themselves and the scientists have to manually process each of them to breathe life into them.
It is like those headlines about new battery tech that allows 1000 mile range but they do not mention that it can not be recharged or new battery that can charge 100x faster but they fail to mention that the battery has shit energy density.