the latest i’ve read was that female ejaculate was quite-similar-to-but-not-exactly-the-same-as urine, in that it shares most compounds, but lacks a few, and comes out of the same meat.
anyway, even if it were urine, the classification would be “redundant” in the same way that spitting and drooling are the same thing. chemically, they are very similar, but that’s not the whole story.