[stevula]

I think the author would make the same argument that they did in reference to Romanian neuter:

> The issue is that these nouns do not behave like a fully-fledged gender. Importantly, there are no dedicated neuter endings for adjectives; instead, when a Romanian ‘neuter’ noun combines with an adjective, that adjective will be either masculine or feminine.

That is, “lo” is a remnant of the neuter but because it is accompanied by a masculine adjective (there is no such thing as a neuter adjective), it does not constitute a true gender.