title is misleading. However, I would not want that supply teacher back either. Her actions show a huge lack of awareness and sensitivity. It was not her place to say that and I totally understand why parents were cross. I would wonder what subject she would start discussing next. Schools choose not to have certain supply teachers back for all sorts of reasons all the time. When I ran a large department, I know I requested the non return of several duff supply teachers. Nothing new in this, just an emotive topic that the media have grabbed onto.
Perhaps more interesting if the lack of comment by the paper on the actions of the permanent member of staff. If were one of those parents, I would be more annoyed at the way it was handled by that person than the stupid blundering "honesty" of the supply teacher.
It is a tricky subject and different children need the topic handling in different ways. My 7 yr old suspects and we are treading a fine line in helping her keep a little magic going while gently steering her to the idea that things to not need to be "really real" for it to be fun and magical. With a younger child in the house, we are a little careful what we say. Never wish to lie or deceive, yet appreciate the fun that a bit of belief in magic is quite healthy.