That’s a tough one. In some people’s eyes he’s no good, so I think that the first mistake he made if he did come back here would result in uproar and meltdown.
So it’s probably best for his own development to stay at Exeter or move somewhere else. Not sure his confidence and general well being could stand being singled out for blame back here, as was the case before.
Then we can look for another goalkeeper who may either become the new hero, or the new scapegoat.