'Production ready' doesn't mean it has all the features you would ever want. It means it is stable and tested enough to run critical workloads. They are saying

'Production ready' doesn't mean it has all the features you would ever want. It means it is stable and tested enough to run critical workloads. They are saying the core is production ready (if your needs are met by the features included in the MVP), but that planned additional features are not yet production ready.