Now before you call me a mind control robot, hear me out. Even though safety requirements are the same for every firearm, there are many safety issues that are range-specific that are not covered in the CFC Rpal course. The club-level range safety course makes sure everyone that becomes a member knows the rules...here is a perfect example - how would you feel if you were down range changing a target and you looked back only to see the guy two slots down from you shouldering his AR and looking down the sights? Believe it or not, many new shooters would think this is ok because they made sure the gun was empty and it was pointed downrange.
The range safety course is a pita but I feel more comfortable not having to guess if the guy beside me is familiar with range etiquette and safety.