My thought reading that article was that "safe haven farms" are also not actual prepardness for disasters.
Where does he imagine he would be getting fertilizer from?
How does he imagine he would survive a hurricane running over them?
Who is running the hospital that does not exist on them?
And so on.
Forcing him to confront that might have made him realize "preparing for calamity required us to take the very same measures as trying to prevent one" actually means.