To be fair, it was a proof of concept to see if it was possible. They did prove that it is possible. The rest of the details probably haven't been sorted out ye

To be fair, it was a proof of concept to see if it was possible. They did prove that it is possible. The rest of the details probably haven't been sorted out yet for how they plan to scale it. A terraforming project can easily take many decades or even a century to complete. So I think it is encouraging to see them starting and/or attempting this to benefit the generations to come.