No, it did not change that, it has come to a deeper understanding of what is the church. That has happened within the church where an existing belief or accepted theology is expanded and clarified, but not changed.
The Church acknowledges that anyone baptized in the name of the Father, Son and Holy Spirit are members of the church, though separated by schism.
I believe the Catechism can do a much better job of explaining, but haven’t the time now to post what it says.
It does appear the catholic church...then..doesn't change anything but rather..”expands and clarifies”?????? That looks like a twisting of terminology to escape the use of the word “change”.
I don't believe believers who have opted out of the catholic church, or those who belong to other denominations are catholics gone astray or lost. Rather they see the contradictions clearly and the twisting of scriptures, even opposition to them, which is why people are not “sold” on the catholic church...Christ rather is central to their life.... and to some all the “other” trappings the catholic church requires are just another road of works and or compliance to their church and what Rome determines...rather than the freedom Christ gives to worship Him without all the “other” trappings. IMO.
Most who follow Christ and the truth desire a deeper understanding of Christ over that of their church...which is basically a meeting place for believers. We become the “body of Christ” as we come together, and it is we who reflect Him to an unsaved world.
According to one of your Catholic cohorts, You will not possibly be able to understand the catechism without years of study in the footnotes, scripture, history, ancient languages and customs and wardrobes...
So good luck to ya...