At [[WP:ARBPIA4#Definition_of_the_Definition of the "area_of_conflictarea of conflict"]] it says {{tq|"For the purposes of editing restrictions in the ARBPIA topic area, the "'''area of conflict'''" shall be defined as encompassing...edits relating to the Arab-Israeli conflict, to pages and discussions in all namespaces with the exception of userspace."}}. And the [[#ARBPIA_General_Sanctions|application]] of ARBECR to PIA is {{tq|"The extended confirmed restriction is imposed on the '''area of conflict'''.]]"}} (my bold). So, even if "topic area" at [[WP:ARBECR]] is more general than "area of conflict", the ARBPIA page explicitly exempts userspace from it.
To repeat myself, ARBPIA4 does not apply ARBECR to the PIA "topic area" but only to the "area of conflict", which is a defined ___domain.
If ArbCom wants to replace the motion, they should do so with a motion to repeal and replace it, as this is not the first time the issue has come up and it won't be the last unless it is put to rest.
