No lah, just nit pick. I had the opposite problem. I used to be much more comfortable shooting fair skin models. When I first arrive in Asia, all skin tones and exposures were off. Just becareful, expose for highlights, you should be fine.
Regarding skin complection, well, either over expose skin a bit to wash out the imperfection, or head straight to DI. Looking at the second picture you posted, ought not be a time consuming exercise.
Now, some may think I am too obssessed with perfection. Well, I like to say, I try to deliver perfection, eventhough I failed alot, in my images. I don't like to record images. That is boring.