Author here.
> Errr... no. Using no TPM of any kind decreases your security.
You're right, I wrote too fast, sorry about that. What I meant to say is that it discrete TPM with no PIN is an inferior solution compared to PIN/passphrase or fTPM. Also I should have added that it gives the illusion of security which I hinted at in the foreword. I'm leaving it as is for now, the discussions here are interesting.