Processor bugs, power glitching, and cosmic rays affecting how the CPU executes a program are still in the domain of facts. Nothing says that facts must lead to deterministic outcomes, though we should have a way to quantify the distribution of outcomes in order to help us distinguish facts from opinions.
Yeah, otherwise the statement in essence would just be, its a fact that whatever happens, happens. While i don't disagree, its not a particularly interesting claim without the "as intended"