I quoted from the latest "revision."
Ordinary Magisterium is only as good as they adhere to constant teachings of the Church, especially on theological items specifically pronounced by Councils.
But, since no Council has made a definitive pronouncement on the fate of unbaptized infants, the Ordinary Magisterium will not be in error, whatever it says.
In all fairness, while "speculation" is allowed, they should be more careful and make mention of it whenever applicable.
The statement from the Catholic Catechism is clearly obscure, since there is no definitive teaching about the fate of unbaptized infants.