I'd expect the technology to take a decade to come to any viable large scale solution. But it does look like a very interesting way to do it.
You said
If we are not using carboniferous fuels to generate power, heat our homes and for cooking, then the need for CCS is diminished - certainly in our plan.
However that does not seem to be the plan completely. It seems they want to do carbon reduction by growing trees, then locking that carbon into CCS by burning the trees as biomass and then storing the Carbon in permanent sinks. The lower the CCS energy required, the more power from burning the trees. The better the storage, the more carbon we can offset by sucking it out of the atmosphere.
Looks like Verodx may be a provider for the UK solution.
It is a bit funny though. Because, right now, we are sucking gas out of the ground and burning it. Yet, given a few thousand years, some water and a lot of pressure and our CO2 sinks could become methane wells.....