Positional play and names for positions have moved all by all accounts.
If I was new to RL I would be confused by the naming. I mean do RL centres play in the 'centre' no, they're one in the from edge. Does the scrum half always fed the ball into the scrum and play off the back of a scrum? Not really. List goes on, props don't really prop up the scrum and the hooker doesn't really 'hook' the ball in the scrum anymore.
Even coaches/players now refer to new terminology, 'outside backs', 'middle' 'left pivot/right pivot' dummy half etc.
I think this is where a lot of confusion regarding positional play comes from, teams can play with a 'left pivot/right pivot' with the 6 and 7 mirroring each other on either sides of the pitch, or play more 'old school' with the 'stand off' standing the scrum half linking up as the 5/8 in the line as the second pivot/receiver, this role at times is now more commonly associated with the FB who often plays second receiver on either side of the pitch, effectively playing like a old school 6. (Edwards use to play off Greg etc).