What you want is predictability and stability. The bullwhip effect of supply chain disruptions alternate between shortages and gluts, and they both cause economic damage.

Having a glut of a product or resource destroys manufacturing capability as employees get furloughed, factories shut down, and talent is lost. ...it then creates a shortage when demand picks up and so on.

Markets are good at reacting if the future is predictive, but if it is unexpected, then there is damage in both shortages and gluts.

Importantly, the more complex and deep a supply chain is, the more unpredictable and magnified the bullwhip effect becomes, even when you expect gluts/shortages. This is because every participant in the chain attempts to cushion themselves from the shocks by stockpiling and timing their sales.