Earlier quoted context omitted.
This has a long history and the US government are not completely stupid. They understand that some cornerstone technologies are high leverage even if they are not per se directly militarily relevant. Some classic examples of this, on which the US places severe export controls, was advanced materials science and inertial navigation technology. Neither of these are weapons but advanced technology in these domains great…
Another one is thermal vision cameras. Anything above 9fps (I guess an arbitrary cutoff to do with night-vision goggles) is export controlled. This is despite the technology being very valuable for many industrial and hobby applications.
Regardless of US controls, I can from Australia buy a high quality 50 fps thermal scope with built in 1000m (or ~ 1000 yard) laser range finder from Hangzhou, China.
ie. Why lock the stable at 9 fps when out on the open plain 50 fps is already running free.