Interesting that the reasoning is reportedly about control and exit costs, not just price. That matches what I keep hearing from people who run large deployments: the lock-in tax shows up years later, when you discover your workflows, integrations, and data shapes have all quietly molded themselves around one vendor's APIs. A tax authority is one of the few orgs with the patience and staff to actually pull off a sovereign-stack migration, so this will be a useful data point either way. Hope someone documents the migration honestly, because the failure modes would be more instructive than the press release.