Intuitively we would think if an animal can move, meaning it has locomotion, it is NOT because it is intrinsic to all matter (i.e rocks), rather it is because there is some bio-mechanical reason for it. Scientist could figure out how things moved and the underlying cellular processes to obtain energy in order to do it. A proponent of this article then might say that all matter is in constant motion. Then we are not talking about the same things. We are talking about directed motion to obtain food or some goal for survival. Atoms are not alive so they don't need to survive and do not have goal-oriented motion. But then those same proponents would list off how electrons move according to laws that behave similar to living creatures etc. so its some intrinsic thing. You can't win with those people. They will always have a response framed in some narrow definition that does not have any basis for what we are thinking of what locomotion means. That's a long metaphor.