The progress in negotiations between Starbucks and the Workers United union is a positive development for Starbucks, as it suggests the company is moving towards resolving labor disputes. This can improve the company's public image and potentially stabilize its workforce, which is crucial for its operations. The scheduled meeting in late May indicates that both parties are committed to continuing dialogue, which could lead to a favorable resolution. This development is likely to be viewed positively by investors, as it reduces the uncertainty and risk associated with labor disputes.