The abnormal is normal with ag production. There’s always a drought or a flood somewhere or over or under supply, market forces and bad predictions. Volatility is normal when you are beholden to the weather, pests, and shifting demand.
People choose what to plant or to plant at all in marginal land, they choose cultivars targeting specific weather patterns that are right or wrong, or a weather pattern makes a great year or a terrible one. This is all situation normal.
A lot of market analysis is just filling space with words or inventing attribution.