[ultima ratio]

You misunderstand. These norms were set by Rome. Rome itself has warned that many Novus Ordo Masses are invalid due to the invalid preparation of hosts. The use of sugar, honey or other illicit ingrediants in the making of hosts would render the Mass itself invalid. This is why there is concern--many Novus Ordo priests are indifferent to this liturgical requirement. In point of fact, the Body of Christ would not actually be present if hosts were improperly prepared since the required "Matter" for Consecration would not be present. This is not a matter of discipline alone, it is a matter of theology.

[ninenot]

The extra ingredients--are we talking invalid or illicit?