The numbers they present are so small that the farm murders in South Africa would significantly change the picture. As I wrote: they include "killed by criminal gang" in South America, and as far as I know, the farm murders are generally committed by criminals in search for loot.
It's sad that you can't mention South Africa without somebody showing up and implying that you are a white nationalist and completely avoiding to engage with the argument. Well, such are the days, I guess.
Genocide is an organized attempt to drive a race to extinction. An effort whose stated goal is to kill everyone of European decent residing in South Africa would qualify as genocide.
Genocide is not just any large-scale killing. It's certainly not the seizing of property, regardless of scale.