The unsurprising result is that naysayers call the change a failure before the first harvest after the change.

They "predict" that they will lose 50% of the harvest. Let's not call it a failure just yet and see how this turns out after a few years.

Sure, sudden change is disruptive, but humans are adaptable and can accomplish amazing things in a crisis. If they don't revert it and stay organic only, maybe they'll have an amazing reputation and a huge competitive edge in a decade.