Just looking at the Letter to the Editor, I can understand people wanting to use the oval to walk their dogs. I live across the road from it and I would love to. (Although my dog is too big and stupid to be off a lead).
But in truth you are not allowed to have dogs on sporting fields. The sports complex is great now that it is fenced, has the fitness path, and skateboard park. But it is still fundamentally a sporting field and as such any animal is not allowed.