Question about journal integrity / encryption

I tried to create a volume with the following command:

cryptsetup luksFormat --type luks2 /dev/sdb --cipher aes-xts-plain64
--integrity hmac-sha256


If I see the json header of Luks2 i see the following part:

"integrity": {
        "type": "hmac(sha256)",
        "journal_encryption": "none",
        "journal_integrity": "none"
      }
    }

in which I understand that the journal is not encrypted, isn't this a
security issue? Is it possible to encrypt it somehow?