However, in practice, the implementation of these systems fell short of expectations, revealing significant gaps between ambition and execution. While millions of attendees had access to reusable cups and food containers, issues like ineffective incentives for returns and the lack of a cohesive strategy hindered the initiative's full potential. For instance, the use of branded reusable plastic cups with insufficient deposit fees to motivate returns exposed flaws in the system’s design.

Despite these setbacks, the visibility of reuse at such a large-scale event still represents a milestone. The extensive media coverage helped to elevate the conversation about sustainable practices, indicating that even partial success can drive public awareness and lay the groundwork for future improvements. The fact that the event reached a global audience suggests that the symbolism of reuse was as important as the practical application itself. It demonstrated that large-scale reuse is not only possible but is also increasingly expected in major global events.

The role of advocacy groups like Break Free From Plastic was pivotal in bridging the gap between aspiration and reality. Their proactive engagement with the organizers and on-the-ground efforts to educate attendees underscore the importance of community-led action in shaping sustainable practices. Their critique of Olympic sponsor Coca-Cola’s greenwashing tactics also highlights a broader challenge: the gap between corporate sustainability rhetoric and actionable commitments. This kind of critical feedback is essential to hold major brands accountable and push for genuine progress.

Athlete involvement, led by groups such as Oceana, further amplified the push for reuse at the Olympics. The participation of over 100 sports organizations and elite athletes in urging beverage giants like Coca-Cola and Pepsi to commit to reuse showed the potential influence that athlete-driven advocacy can have on corporate behaviours.