What might you be basing this interesting theological assertion upon?
The Pope is not–I repeat–not–the ‘ordinary and universal’ Magisterium of the Church. The General Council of bishops, along with the Pope, are what constitute the ordinary Magisterium. It is an extraordinary circumstance when the Pope articulates an infallible doctrine on matters of faith and morals, and he must clearly express his intentions to do so for the universal Church. This is obviously not the case with Pius XII’s statement to midwives.
DanMan is right. In no way can the Allocution to Midwives of Pius XII be construed as establishing an infallible doctrine of limbo which must be held for all time by all Catholics–and this is what you are claiming, whether or not you realize it.
Since it does not reach that level of magisterial teaching, we are indeed free to revise it, as long as we keep in mind the gravity of original sin and necessity of baptism for salvation–which the new ITC statement goes to great lengths to preserve.
Again, the ITC statement does no harm to these dogmas whatsoever.
I wonder if in your support of “the necessity of the sacrament of baptism” you oppose the ideas of baptism of blood and desire which are widely supported by Catholics today? While we cannot *expect *God to work outside the sacramental economy, we must know that, in His omnipotence, He can, and because of promises made in Scripture (ie, to the good thief on the cross who was promised Paradise), we know that it has happened in the past and can hope that for some others it might happen now or in the future.
But this is obviously not the way in which our current or previous popes have understood it, nor the ITC. So there is apparently some leeway in our interpretation of the issue which the greatest theologians of our time have not found as incredibly problematic as some on this forum have.