unconvincing explanations

The explanations for why CM works (at least the ones in my Chinese TCM textbooks) are terribly unconvincing...another reason that in CM education clinical observation should take place as early as possible - not in the last year as it does in the Chinese higher education system.

Seeing something produce an obvious effect more than makes up for the unconvincing explanations!

I'm wondering if these unconvincing explanations (which I don't recall when I learned about CM in the US) are part of the official goal of ridding TCM of superstition and mystical belief.