As the software can make assumptions it may not be so obvious what information it is basing its assumptions on. Books are more transparent. In a book one gets led from step to step. Software jumps to conclusions. Books are clumsy at making decisions.
Software makes the process look deceptively easy.
It is easier to know the credibility of a book. Books concentrate more on the content. In reality the answer is much more likely to be a common cold. If a clinician gives the impression they do not know about the information the patient may assume the clinician is trying to hide their ignorance, and therefore believe the information rather than the clinician. Understanding the sources which patients may have tapped.