Google publicly stated that compliance requirements under the EU Digital Markets Act produced "the largest reduction in quality of service at the world's most popular internet search engine in its 29-year history." The DMA required Google to make structural changes to European SERPs — separating its own services from organic results, providing interoperability access, and applying different ranking logic to prevent self-preferencing. Google's characterisation of the outcome is that these mandated changes measurably degraded search relevance in EU markets, as assessed by Google's own quality metrics. The statement is notable for its directness: it is unusual for a company to publicly attribute product quality degradation to regulatory compliance in terms this unambiguous. For brands with significant European organic traffic: rankings, click-through rates, and query-to-result alignment in EU markets may be diverging from global baselines not because of content quality or algorithm changes but because Google is operating under a structurally different constraint set. Treat EU and non-EU organic analytics as separate populations in attribution models. DMA compliance is an ongoing requirement — the SERP structure in European markets will not revert, and the divergence between EU and global organic performance should be modelled as a permanent structural difference, not a temporary anomaly.