The church has never put forth a doctrine on what happens when babies die before their Christian parents have the opportunity to have them baptized. This is not a commission to change a church doctrine, but rather one to investigate an issue which has been considered problemmatic to the Catholic Church for centuries. St. Thomas' teachings, while deferred to in recognition of his holiness and wisdom do not represent the entirety of church Tradition. Nor do those teaching reflect with the Pope's statement to the commission, "Catholic theology has sought answers that are in accord with the mercy of God the Father."
Absolutely nothing in thsi incindiary article presents a conflict between the Pope and St. Aquinas on this issue.
I agree that its supposed to be a commision to investigate an issue which has been considered problemmatic to the Catholic Church for centuries - but what are the chances of a clear unambiguous answer thats not 30 pages long, has one correct sentence then contradicts itself to the point of getting nowhere.