Looks very interesting but I see one obvious issue that may or may not be significant --- any satellite to be launched will have to be built to withstand the 10000g launch.
Forget satellites: launch water, rocket fuel, 3D printing material!
Relativity Space is building 3D printers large enough to construct orbital-class rockets in one piece. Others will follow. If they can make printers work in vacuum at 0g, that's how we build our next-next generation of space stations. SpinLaunch wants to launch around the clock, multiple times per day. Just keep flinging materials and consumables to the construction robots building our future habs.
True - just to be over-precise; as I read it the launch (release) per se isn't 10000g, nor the acceleration (so to speak) to velocity inside the device, but the centrifugal force inside the device gets to 10000g. There are guided artillery shells whose electronics survives much greater force (although it's a tough, expensive way to go.) For an integrated circuit or solar panel designed for it, 10000g may not be that much, however. Not much compared to an artillery launch, at least.
We've been launching electronic devices by artillery since WWII - those with proximity fuses - without transistors!
And for electronics this is expensive, as I alluded to earlier. The guided artillery shells used in Ukraine now are actually more expensive than individual HiMars rockets.
