SpaceX is only "flight testing" half of their rockets. The upper stages, which are equally as complex albeit smaller than lower stages, remain single use devic

SpaceX is only "flight testing" half of their rockets. The upper stages, which are equally as complex albeit smaller than lower stages, remain single use devices. And SpaceX has blown up plenty of rockets learning how to launch them. That a Japan has lost one doesn't speak ill of anything or anyone.