It’s absolutely relevant because a diversified food supply would result in smaller farms, other things held equal.
You have fewer single points of failure, but more opportunities for failure and a tougher time addressing it via inspection, and less capital available to implement compliance.
Imagining a guy gasping out his last words as he succumbs to life-ending diarrhea in the back of an ambulance that’s long since cut its lights and sirens, “This is the best of all possible capital allocations for hygiene compliance”