What core operational risks do teams accept when they rely on Google's Artifact Registry to automatically route legacy gcr.io paths instead of refactoring pipelines to use native container hosting? Furthermore, this legacy service strictly bound container imaging directly to Cloud Storage buckets, lacking the modern, fine-grained access controls, regional isolation, and multi-format package support found in standard artifact management platforms. How do you justify maintaining aging deployment configurations over executing a clean programmatic migration to a fully managed, multi-region repository system?