These projects are very important for the future, but only as experiments. Until we have an excess of 'green' power to allocate to sequestration, sequestration causes a net release of CO2.
Even plant-based sequestration can be a net negative, depending on any resources used to help it grow. Fertilizer production releases greenhouse gases, and over-fertilization of a field causes the release of N2O, which is a particularly potent GG. And if the plants end up rotting or catching fire, there goes all that CO2 back into the atmosphere.
We're still at the magical-thinking stage where we believe we can keep on going the way we are because science and technology will save us from ourselves. In reality we need to start consuming and producing less. It's not as though we even truly enjoy all this excess - if there was any happiness in it we wouldn't be so much like junkies itching for the next fix.
My wife and I shop in "bins" stores where stuff returned to Amazon and the like is re-sold. Much of it is perfectly good and fully functional - who knows why the purchasers rejected it. Yet most of it - countless thousands of tons - is ultimately destined for landfill. When I think of all the resources that went into making and shipping it, only to have it scrapped, sometimes I literally cry.