That gets me to wondering whether there might not be room for a meta-link between the two, at least in UF. They seem to have a lot of (admittedly superficial) similarities, after all...

Come to think of it, the Neuroi mostly seem interested in land targets, while the Fog are after the seas. If my brain weren't currently in a pain/painkiller addled state, I could probably make a few interesting points out of that.