This is a restatement of the Cassandra docs paired with the usual misunderstanding of CAP. An AP system is not a choice of "I'll have availability and partition tolerance, please". It's the choice of availability given a partition. The whole point of CAP is that when partitions occur, there is a forced choice -- this is why it's incorrect to ask for a CA system.

The Minio team are manifestly excellent engineers, but insightless posts that contain subtle misunderstandings of CAP do nothing to showcase that competence.