While the lawsuit poses a legal challenge for FedEx, questioning its contractor relationships and potentially affecting its cost savings strategy, the immediate market reaction saw an increase in stock price. This suggests that investors may not see the lawsuit as a significant threat to FedEx's financials in the short term, or the news may have been overshadowed by other positive factors influencing the stock. However, the importance is rated high due to the potential long-term implications if the lawsuit leads to changes in FedEx's business model.