"To be clear, the goal here is not to deny China or any other authoritarian country the immense benefits in science, medicine, quality of life, and so on that come from very powerful AI systems. Everyone should be able to benefit from AI. The goal is to prevent them from gaining military dominance.”
A moralizing statement that weasels out of the implication.
This would be a more straightforward way to say it: Export restrictions are necessary to prevent China from gaining military dominance, even if those restrictions deny China the immense benefits in science, medicine, quality of life, and so on that come from very powerful AI systems.