I agree with Quarto partially. From the view that Howard Day provided you would likely not see any type of specular reflection. However from a much closer view that Brad showed there would be a noticeable reflection. I think the key here between the two pictures is the distance. From a view in which you could see the entire circle of the planet you shouldn't see any spec reflection. However when your viewpoint is as close to the planet as in Brad's picture (say from low orbit) the spec would be noticeable. I'm not sure if I'm explaining myself very well here but I think you get my point.