The purpose of the Spellplague was to "free" the game designers and novel writers from the mass of canon Realmslore. They seemed to view it as an obstacle, not a resource.
I have been told privately that another reason was to separate the Realms from Ed Greenwood, to diminish his influence and put the setting firmly under WotC's control.
I have been told privately that another reason was to separate the Realms from Ed Greenwood, to diminish his influence and put the setting firmly under WotC's control.