But the issue is that the teaching on Limbo is part of the Ordinary Magisterium. This was what was taught by the Church for hundreds of years. All you have to do is consult the catechisms prior to JPII's Modernist Catechism to see that this is true.
piusv:
Well I think not respecting what the Orthodox believe is not something I agree with. I would argue that one of the causes of the Protestantism was the that the Latin Church lost contact with the Greek Fathers, hence legal and forensic scholastic theology became dominant in the West and that sort of lead into Protestantism. That is just and opinion that I have but one I think has some scholarly basis.
And yes I am aware Limbo was part of Ordinary Magisterium. But that term developed in the 19th century to deal with the higher critic schools in Germany to remind them that the faithful are bond to adhere to both solemn Magisterial teachings (Council of Papal Decree) and those that were held by the common consensus of the Church and theologians down through the years. I think the higher critics were rejecting everything not part of the Solemn Magisterium (I think that is correct).
But it was never defined via a Church Council or in the manner like the Papal Infallibility, Immaculate Conception or Assumption of Mary. Like I said the entire theology of Limbo for infants started with Saint Augustine in his debate against Pelagius and his followers.