Media can fail, but the parent there is saying they can fail with byzantine faults.
Most of us don't protect against such faults. (Neither Redpanda nor Kafka do, but that's not the point of the OP; the OP's point is that Kafka is not protecting against non-byzantine faults in the disk.)
Most of us don't protect against such faults. (Neither Redpanda nor Kafka do, but that's not the point of the OP; the OP's point is that Kafka is not protecting against non-byzantine faults in the disk.)