I think this is so the victim has more freedom than the offender. It currently stands that he can't go to a limited number of places (her town, for example) but can go anywhere else. She will worry if she leaves her town.
The restrictions are playing catch up with technology, he can online stalk, find where she holidays, who she visits outside the town etc. then comes the process of adding restrictions.
If he was only allowed in one county, then she could relax and just not go to that county.
He'd be able to change area if he got a job, probably, with limitations and theres no suggestion of putting them all in one place.