Perhaps, but I thought of a perhaps more insidious use. This wasn’t DALL-E, but a different AI art generator; as part of my prompt, I mentioned redwoods. Now, redwoods are distinctive enough that a decent AI can generate images recognizable as such.
It occurs to me that this could, if used nefariously, do more harm than creating nonexistent species. Generate images of redwoods – which our CV can correctly identify as such – and put in whatever fake location you want. You could create the impression of a taxon being much more widespread than is actually the case, and without the risk of a reverse image search finding out where the picture was actually taken.