True, but the species didn’t care what Noah knew or did not know. The solar system revolves around the sun and some believing it revolves around the earth doesn’t change the astronomical fact of physics. Our ignorance doesn’t change reality - just our perception of reality.
No, perhaps I wasn’t clear enough: the current concept of species is a human construction (not comparable to an astronomical fact of physics or anything like that). It can and will change once our understanding of life improves. And about Noah, there’s no way to say that “two of each” didn’t actually mean “two mammals, two birds, two lizards, two fish, etc. and we’ll resequence (evolve) the rest later”. The real point is, there’s no need for “species” to mean there what modern scientists say it mean. It wasn’t clarified enough. And it wasn’t written by nor for scientists.