Bugs are unintentional. This was massive intentional theft.

There's no indication that's the case though? If the standard of evidence for executing CEOs is "maybe because there's embezzling going on because lack of records will help an embezzler", then it seems fair to execute programmers for introducing 0days because "maybe it's an intentional backdoor because a well placed memory corruption bug would help hackers". Even before the xz backdoor, accusations of vulnerabilities being intentional backdoors isn't uncommon.