The points about the ANC reneging on its economic programme are all correct, but they miss one very important point. This is that the turn away from the full economic programme was a necessary strategic manouevre in the conditions of the 1990s. The risk that the white minority regime would press the self-destruct button was a very real one, and that had to be avoided, even if the cost was deferring the struggle for economic justice until a later date.
Mandela has died in the year of the hundredth anniversary of the 1913 land act, which began the real seizure of land that led, later on, to the creation of the apartheid state. That later date at which the struggle for economic justice would have to be resumed may be approaching in the very near future. Looking at things like the Marikana massacre last year, it looks like it may have already arrived.