Nope...
Just ran another test.
Exported V4 (with textures even) from S-M Poser Pro using LWO2 export and opened the LWO in Lightwave Modeler. No UV map present at all.

Then I Exported a fully textured V4 from LW, which needless to say had UV maps applied in all surfaces and imported that into Poser using the LWO2 option. Tried to add a texture to it and only ended up with the surface color, no texture. Because Poser can't apply a texture map to an object using UV coordinates if there are no UV coordinates.