Less than 1% of the global trade disputes reach the tribunal for arbitration. But more than the arbitration what the existence of WTO did provide was an impetus or even a strong nudge to governments to settle differences.
A collapse of the institution itself, it is feared would be strong motivation for aggressive governments to impose their rules on global trade.
Consider these issues and the pressures on the global trade regime as well as the impact of the WTO and its role in assisting the free and fair flow old global trade.