Effaith yr eithriad disodli arfaethedig yw y byddai pob gorchymyn neu unrhyw orchymyn i  amddiffyn pobl rhag ymddygiad sy’n achosi neu sy’n debygol o achosi aflonyddwch, braw neu drallod yn dod  y tu allan i gymhwysedd deddfwriaethol y Cynulliad.  Mae hyn yn gosod cyfyngiad ar bwerau’r Cynulliad, gan y byddai’n ei rwystro rhag deddfu’n sylweddol ynghylch unrhyw fath o orchymyn i amddiffyn pobl rhag ymddygiad sy’n achosi neu sy’n debygol o achosi aflonyddwch, braw neu drallod, hyd yn oed mewn cyd-destunau datganoledig megis y gwasanaeth iechyd, ysgolion neu dai.
The effect of the proposed replacement exception is that all or any orders to protect people from behaviour that causes or is likely to cause harassment, alarm or distress would fall outside the Assembly’s legislative competence.  This represents a restriction on the Assembly’s powers, as it would prevent it from legislating substantively about any sort of order to protect people from behaviour that causes or is likely to cause harassment, alarm or distress, even in devolved contexts such as the health service, schools or housing.