It's true that the do have a dark line on the lores (between the eye and bill). But this can fade slightly over the winter, and may not be as obvious at certain angles (especially it seems when seen from the front as this bird). Notice that the bird slightly behind and to the left also seems to have a rather white face (although perhaps not as much).
Besides the white lores, there are a number of features that fit with this being a Greater Sand Plover and not White-faced e.g. large size, heavy bill, leg colour (dark olive, not pinkish), size of dark patches on the breast sides.
