That part about paranoia was a half-joke. But no, it was not suggested (that was not a «notion») that paranoia would be a «default emergent state». It is tough a temptation of many.
And while you will often be able to identify «potential malicious incentives», you have to put those possibilities together with the rest of those which can complete the set.
Assessments must be complete.
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Edit: oh, by the way, importantly: paranoia ("off-thought") means "delusionality", and in that sense the statement «And keeps you away from paranoia» was literal. "Be "cool" and exhaustive in assessment, and you will avoid getting stuck in alluring stories". The half joke was about the current use of the term (in the popular interpretation of the clinical state).