There is no evidence that the RH PFD or ND displayed erroneous information, apart from the air data derived information.
As far as I'm concerned, PF's actions are evidence.
Had there been any significant discrepancy between the LH and RH displays an error message to that effect would have been generated. There is no record of any such messages.
OK, that is convincing, thanks.
The sidestick is mechanically connected to the transducers that transmits its position to the flight control system. The recorded position of the sidestick is just that.
Good info, then I can put that doubt to rest!