They may finally be on their way. But as the article says, we won’t understand their economics until they’re actually put into operation. And as usual, the Union of Confused “Scientists” will try to throw up roadblocks.
Interestingly we were working with Flour Daniel when I was at Rockwell working the Space Exploration Initiative on ISRU. I wonder how applicable these would be on the moon or Mars? There’s water for cooling in both places.