This is exciting good news for several reasons. Firstly, geothermal energy makes a 100% renewables grid easier, than if that was just solar+wind. As it's effectively on-demand, it irons out the problems with solar+wind's variability.
Secondly, it eases the job transition for fossil fuel workers. Many of the skills and experience in the fossil fuel industry are transferable to solutions like this. Now that the conversation has moved from fossil fuel reduction to setting the timeline for their complete elimination, being able to point to things like this will help win arguments quickly.
It seems like the tech to completely eliminate fossil fuels has arrived, now the remaining issues are political. How can we constantly accelerate and move faster to eliminate coal and oil use more quickly.