Man...those parents are gonna be downright furious when they find out about god.

I have very mixed feelings about this.

On one hand, it was not the substitute teacher's place to disabuse all those little children of their childhood delusions so harshly, and so abruptly.
For her to have done it as cruelly as she did, shows her immaturity, and lack of compassion for small children. She might be in the wrong profession altogether.

On the other hand, I really don't like lying to children about anything. It's disrespectful and demeans their humanity. I'm no fan of this silly season.
It is borne of lies and delusions.

Parents shouldn't lie to their children. However, no one else really has the right to tell children that their parents are liars. Not when they're that little.