I'm guessing you meant the Nuclear Regulatory Commission, not the National Reconnaissance Office. Considering that since the NRC was created in 1975, no nuclear plant license initially submitted to them has begun commercial operations, I think it would be difficult to further impede progress.[1]

I have no clue whether these buyouts will be beneficial or not. It really depends on how government responsibilities are structured. If everything operates under the same rules but there are fewer workers to process everything, then it will hurt economic and technological growth. If, on the other hand, there is a lot of dead weight in these departments, or the rules change to streamline certain processes, then it could be a net improvement. It will probably be years before we have a definitive answer. And as you say, it will probably be different for different parts of the government.

1. Some new nuclear power plants have come online since 1975, but they were all from licenses that were initially submitted to the NRC's predecessor, the Atomic Energy Commission. Also the NRC did approve two new nuclear reactors at an existing plant, and those did begin commercial operations 19 years after the license was applied for. https://en.wikipedia.org/wiki/Vogtle_Electric_Generating_Pla...