@Jebus_lives answered for me here mate.
I see your point, I do get it. I'm too a bit worried that in April we'll suddenly see this 4th jab thing. They might as well just say now this is going to have to be a yearly vaccination along with the flu jab or whatever, because that seems likely to be the case.
But, right now even though the data from South Africa is good, you need more real-world evidence. Norway and Denmark appear to be a few days ahead of the UK, so these two countries are basically the pilots for Omicron in Europe too.