Party retards boasted that their bullet train technology (stolen from Japan and Germany) exceeded speeds achieved in their foreign counterparts based purely on Chinese innovation. In reality, they merely pushed cloned technology beyond the speed limits set by the Japanese and German companies that came up with the technology. Why did these speed limits exist? For safety reasons. The odds are that none of the Chinese decision-makers who came up with the idea of exceeding the maximum safe speeds were in the two derailed coaches.
They may well be executed, though.