God there's some absolute shit written above in this thread. If you bother to read Basketball SA's recent update on Facebook it says in consultation with SAPOL the definition of a close contact has changed in a basketball setting.
If you play on a team with a positive case you are not necessarily classed a close contact now. This will limit the requirement for teammates to isolate meaning less cases of forfeiting games because the whole team will no longer be in quaretine.
So the rules and definitions have changed, making it easier for clubs to remain involved without being concerned at losing half your teams through isolation via close contacts.
So Basketball SA didn't cave to anyone's threats, they were provided updated information from SAPOL which has made it better for all involved in the sport to remain engaged.