Quite so, but I think Ramaphosa put in that little bit to give himself a convenient excuse to go back on his word: currently, all the “redistributed” farms are not productive.
But, this is where the ANC is going to get a whole lot of the house (esp the EFF) on board to help them push constitutional changes.
The EFF will support it. But will the entire ANC? Especially if the opposition can force a secret ballot? They may or may not get the two thirds they need.
The other problem here is the populace is an entirely different matter. The ANC is in a populist rock-and-a-hard place. The people want the farms. Period. They are not going to back down from that demand.
Actually, I’m not sure the people want the farms at all. The people want to leave the farms and move to the city to get proper jobs. But the farms have become a political symbol of sorts. The people perhaps think they want the farms. But once the farms are confiscated, the politicians may find to their unpleasant surprise that they can’t find anyone willing to volunteer to go live on the farms. 
If we can get the economy growing a bit, the huge exodus from the country to the city will speed up, and the countryside will empty out of people who want farms. Perhaps the thing will blow over.
But it remains to be seen. I wouldn’t get too worried or too excited about anything any politician says in a SONA speech. It’s bound to be self-serving and populist. I wouldn’t have bothered at all, but I was visiting family and they all watched the speech, so I did too. I wasn’t as excited as they were. I’ll believe in an improvement when I see one.