Unexpected vault behavior

I am noticing a strange behavior when I use vault to secure a password for a playbook. I am not sure if this happens with other vaulted info. I wrote a playbook that does an ipa-client-join and I used vault to secure my password. In var/log/messages, I see the command string and the username which in my play is clear text is obscured like so ************@yaddayadda.com but the password which is vaulted info comes accross in the log cleartext. Am I missing something?

Thanks