God doesn't care if the kid's wafer contained wheat or not. The insistence that He does, is a wonderful example of the sort of "rubricism" this article is talking about.
To see Jesus's take on such matters, look under "Pharisee" in the Gospels.
BK--don't feed the trolls.
Have you received some revelation from God that the rest us us hasn't? On one hand, you want to bypass the authority of the Church which Christ established, and on the other, you are speaking for the Almighty Himself!
If it is merely a matter of a kid receiving some wafer, you might have a point. But if the issue is about receiving Holy Communion, that's another ball of wax altogether.
Our Lord Himself established the reality of the Eucharist and what it is that constitutes the proper matter and form. He chose wheat bread and wine for the matter. The Church has no choice but to guard, protect, and pass on what He has chosen. The Church has no authority to change it.
In the article you referenced, the kid had other valid options for receiving Holy Communion. Rejection of them on the part of others is not the Church's fault.
Incorrectly following the rubrics of the liturgy generally results in illicit actions. The referenced article deals with an invalid Eucharist, i.e. it really is only bread, not the body, blood, soul, and divinity of Christ.
The Church can't change that fact.