It seems logical, at least, since it is technically a skill the race itself has developed over time or what have you. But I just thought it would be a nice touch. I don't want anyone getting confused on what those legions of overpowered battleragers can and can not do these days.

Eh, it's not a big freeking deal. You're playing a game where the so-called Haters of Magic can eat seaweed and grow some ####ing gills. I don't think we need to split hairs over the possible mystical nature of a drow's inherent Wink o' Pink.