Some things are said to be wrong, while others are re-interpreted.
Or both. I consider the Genesis flood story to be wrong. In my opinion, it never happened.
I also don't consider it an allegory or metaphor (see SPOILER below for more on this). Allegory or metaphor for what? What really happened? I call that error if the author was not intentionally having something representing something else, but simply got it wrong.
I like it. Taking the Bible too literal puts a lot a people in tough positions. How literal are they going to take it? Then once they start making concessions, where do they stop? Not too many Christians take the verses in Mark about drinking poison and picking up serpents literal. Lots of them that do are dead.
But, when the gospels say Jesus came back to life and ascended into the sky, I think that the gospel writers intended that story to be taken literally. But who, other than most Christians, are going to believe that? Now we have a new religion, the Baha'i Faith, saying that their prophet is the return of Christ. But, not only that, he is the promised one of every major religion.
So how do they make a man in Persia the return of Christ? The first thing is that the return can't be Jesus. All things have to be interpreted to support that. And they have their verses. But another thing they do is get rid of the resurrection. And, like I said, who believes that literally happened? Other than most Christians and maybe a few others. So Baha'is have made all the verses dealing with the resurrected Jesus, symbolic. The "body" of Christ becomes his followers. They are the body of Christ. And they, after three days came alive.
Fantastic story. But, like what you're saying with the Flood story, if Jesus didn't come back to life, then that is a fictional event. There is zero indication that the writers were making up a symbolic story. So, to me, if it didn't happen, they were lying. Lying to make Jesus into a God/man. And it worked. Or, the story is completely true and the Baha'is are lying. Or, I guess, the Baha'is could be right and God told four different gospel writers to say Jesus rose from the dead, but only in a symbolic way... but had them write it as if it really happened. But, I doubt it.