I have flown the sim and I am a current narrowbody Airbus pilot.
I thought that the cockpit was cluttered across the FCU and efis cp area and I am not sure about having flap position below the PFD.
Having it on the EWD makes you look at it and the current engine parameters when actioning the landing checklist..
It flies just like an A 320 and the electronic checklist makes the PM/ PNF have his head down actioning it rather than monitoring or looking out.