Foodborne illness happens; it's one of the hazards of eating. But when a company makes a concerted effort to claim its food is holy and righteous – while everybody else serves poison – management shouldn't be surprised when public backlash is severe. It's entirely predictable, self-inflicted and deserved.
Our society is woefully illiterate on scientific matters. Yet instead of taking the opportunity to educate customers about the benefits of food science, some companies have chosen to cash in on public ignorance.