Just for the sake of ensuring that you don’t think I disagree: yes, this is true.
Two thoughts: first, in saying “the Catechism does the same,” you’re making an interesting assertion. Do you realize that, in the section on the creation of humanity, the names ‘Adam’ and ‘Eve’ don’t show up in the CCC? They only appear once the catechism is talking about original sin, and even there, it only begins to appear when the catechism is talking about the effects on humanity!
Second, the Church
hasn’t always referred to these as ‘Adam’ and ‘Eve’. Take a look at the Septuagint; there, we see two interesting points: first,
everything in creation is given a name – except Adam. God doesn’t name him; he doesn’t name himself. All of a sudden ‘the man’ is called by the name ‘Adam’, which simply means “of the red (earth).” It is not so much a name as it is a title.
And what about Eve? When Adam names her, that name is reported in the Septuagint as
Ζωή (‘Zoe’), not ‘Eve’. In other words, this, too, is a title! (Later in Gen 4, her name is given – only one time, and not again – as
Ευαν (‘Eve’).) I would assert that this is hardly evidence as “always referring to” them in a way that’s significant.
This is quite a conclusion! Yes, there are traditional ways of referring to the first man and the first woman, but does that prove that they literally existed under those names? Let’s look at a counterexample: after being renamed ‘Israel’, the Bible still regularly switches between ‘Israel’ and ‘Jacob’ in referring to him. He is
not consistently called by one name, either by the Bible or by the Church, which is your measuring stick for asserting the literal truth of a name. Does this imply that these weren’t his names?