While I agree that the section referenced is in turn, heresy, PC to the max, rejected. How does that square, when according to some sources: What exactly is in the Catechism? The Catechism contains the essential and fundamental content of the Catholic faith in a complete and summary way. It presents what Catholics throughout the world believe in common. It presents these truths in a way that facilitates their understanding.
What is the purpose of the Catechism? The Catechism serves several important functions: It conveys the essential and fundamental content of Catholic faith and morals in a complete and summary way. It is a point of reference for national and diocesan catechisms. It is a positive, objective and declarative exposition of Catholic doctrine. It is intended to assist those who have the duty to catechize, namely promoters and teachers of catechesis.
http://www.usccb.org/beliefs-and-teachings/what-we-believe/catechism/catechism-of-the-catholic-church/frequently-asked-questions-about-the-catechism-of-the-catholic-church.cfm
How then can it be disputed?
In light of what has been happening the last decade and a half, the sad reality is that when that when the CCC was put together, you did not have Islam resurging the way it has had the last 10-20 years. Plus its violence has made a mockery of CCC 841.
Ah, now you’re getting into why there is an SSPX, a Resistance, sedevacantists, etc. Although they differ in some respects, these groups of “traditional” Catholics all hold that there was error in the Vatican II documents. They hold that these teachings contradict Catholic teaching for hundreds of years.