And it puts them at odds with St. Patrick. By their nature, saints followed the will of God, that includes following the order of the catechism, at least at and near the time of their death, at judgement time.
So this is scandalous
Actually, regardless of what the uninspired CCC states, there was no distinct class of believers called "saints," and this is used to refer to all saints. (Rm. 15:25; 2Cor. 1:1; 9:1 Eph 1:1; 2:19; 4:12; (Philippians 1:1; Colossians 1:4)
Meanwhile the first universal Roman Catechism (also called, the Catechism of the Council of Trent ) was first published in 1566, and before Trent RC doctrine was much less standardized and more variegated. And which Catechism, was a result of the Reformation, as was the first infallible canon.
And some of what is usually told is as regards the works of this pious man is lacking substantiation, and other information can be rather sparse.
His own writings provide nothing that can be dated more precisely than the 5th century....The Irish annals for the fifth century are not contemporary documents,[11] but were compiled in the mid-6th century at the earliest...A variety of dates are given for his death.
Most modern scholars follow a variant of T. F. O'Rahilly's "Two Patricks" theory.[20] That is to say, many of the traditions later attached to Saint Patrick actually concerned Palladius, who Prosper of Aquitaine's Chronicle says was sent by Pope Celestine I as the first bishop to Irish Christians in 431.- https://en.wikipedia.org/wiki/Saint_Patrick
Shaff also write of him: http://www.ccel.org/ccel/schaff /hcc4.i.ii.ix.html