Trying to compare flight control systems between certain aircraft types is very flawed as some are trying to do.
Anyway, this AD affects L102 STD ELAC software only. Spoke to a Tech Services colleague and if you want to recover the full operating envelope ie not have to apply the AFM TR requirements then you can request approval for the L101 STD software to be reloaded (de-modding the aircraft), not a big deal on the software loadable ELACs which would likely be all that are installed on A321neo aircraft.