This is exactly what I expected and have publicly predicted based, as it was, on simple economics. NuScale had initially projected lower costs than traditional mega-nuclear plants, but in the last couple of years had admitted that the costs were going to be no better -- efficient construction apparently not offsetting giving up economy of scale. Without a cost advantage over "Old Nuclear" NuScale had no case to make.
And this project could not have contributed significantly to decarbonizing the rest of the U.S. grid, nor provide the necessary scale to support electrification of transportation. Too little too late, even if it stayed on track, delivering a small increment to the U.S. power grid better part of a decade from now, which would be overwhelmed by the renewable power added that same year. Deployment on a scale that would be meaningful was simply not in the cards at the high cost of the technology. It is helpful to realize that to add 1% to the current U.S. grid 260 of these modules would be needed, and the NuScale project was for a mere 12.
Still, I am sorry to see it fail and do so this early. It was the most mature project, and had the sense not to propose the use of "high assay low enriched uranium" (HALEU) which has enrichment above 5% and can have enrichment up 19.75%. Currently nuclear power plants have LEU with enrichment up to 5% which is what NuScale was planning. Using HALEU has two problems. The first is that no one makes it on the needed scale, so new production would have to be set up and it woudl be niche product no being able to leverage enriched uranium economics (raising costs further). The second is that as enrichment climbs above 10% it becomes possible to make kiloton scale bombs with it. The amount needed is several hundred kilograms, but the industry would consume several hundred to several thousand tons a year so additional protection against diversion would be needed. With NuScale this issue never arises.
Small modular power reactors would be a useful industrial product to have available - mostly for niche deployment situations, not a cost-effective contributors to the national grid.