They probably would make those promises.
However, the FIFA people are not the ANC voter base - they are capable of rational thought.
They will realise, like we do, that no mines = 5 million people with no food.
And they will realise that hungry, desperate people are a threat.
They will realise that the stadiums also do not operate in a vacuum - that the tourist who spends 2 weeks here for the WC, will only spend 2, maybe 6, hours in a stadium, and the rest of the time he will need water, food, shelter, and so on.
No - I doubt the ANC can promise anything that FIFA will not see through as a false promise. Not at this stage.
And, if they(FIFA) DO go ahead, let the blood of killed tourists be on their heads if the power is indeed turned off in all industry and the populace riots.