Would be nice as an option. I also would like the option to have a smoother transition in general. Iirc, almost all of the PC horn options have torn skin around the base of the horns, where the black bony material shows through small holes. Very aesthetically unappealing. Same for the skin folds that tieflings have.
If Larian does not include that, though, I'm pretty sure we'll eventually get a mod for it, just like we did for elf bodies in DOS 2.