for employees that just take payments.. they dont need the jargon explained. they just need to know how to acept payment
As a business owner he is not just concern about teaching his workers how to accept payment with bitcoin but, also want to make the step of teaching them what the blockchain is in general, that what makes him different from the bankers.
He is using every means possible to train and educate everyone around him about bitcoin (crypto currency in General) and i think that's a bold step taken by him.
I understand it might cost him time, but its worth it with the knowledge he is going to gather here, he can succeed in making all his workers understand the process and, save them future errors.