Once it is clear that the baptism of desire refers always to a hypothetical case then the Catechism of the Council of Trent is not controversial when it refers to ' the desire thereof '

 Once it is clear that the baptism of desire refers always to a hypothetical case then the Catechism of the Council of Trent is not controversial when it refers to ' the desire thereof '.It does not contradict that Catechism's strict interpretation of the dogma EENS.

Similarly when the Catechism of Pope Pius X mentions invincible ignorance. It refers to a hypothetical case. So it does not contradict that Catechism when it affirms the strict interpretation of EENS (24Q,27Q). - Lionel Andrades