CO2 removal sounds like its a necessary process to reverse global warming. However at this stage its kinda dumb to try to extract CO2 into solid carbon when in nearly every country in the world is still burning coal producing CO2.
You'd want to stop burning the coal before you start to try and claw solid carbon back out.
It's great to prototype capture... but the benefit is developing a technology that will mostly only be useful after largely decarbonizing the economy.