Most, if not all, cattle in South Africa are stunned before slaughtering.

Answer

Stunned beef is haraam carrion. It is an absolutely brutal way of killing the animal. Prior to slaughter, the animal's brains are smashed by shooting a metal bolt into its skull. The natural demand of kufr is cruelty, hence the kuffaar and those Muslims who follow in their footsteps see goodness and 'humanity' in such cruel methods. Muftis who have lost the road and drifted very far from Siraatul Mustaqeem find it appropriate to halaalize this form of Shareetatush Shaitaan (the devil's slaughter).