I'm not sure about that, because for me, the face claim just spells out all of the potential characters that could work with this kind of appearance. It may be a form of restriction, but it's also a form of limitation. When I don't want too many character ideas to fill my head, it's pretty convenient. I mean, sure, you're putting a huge downer on any other ideas you could've POSSIBLY had, but possibility is overrated, I guess. xD.