The Jetson Orin is a dev kit, it's not shocking to see it escape sanctions or be used for weapons.

If you try to bring the axe down on all CUDA devices, you'll still struggle to stop China from exporting their warehouses of Nvidia Tegra boards. Or stop Nintendo Switches from being jailbroken to run CUDA drivers. It's a no-win situation like saying you found Intel/Texas Instruments chips in a missile.