It is and has been McGovern's signature look and is considered quite beautiful by many people.
Haven't you noticed yet that all people look different?
You could also complain about Smith's constant facial distortions or Bonneville's baby faced, corn-tooth smile. It's who they are.
Aren't you able to muster up enough courage and admit that someone's appearance bothers you?
Of course, I hope after reading that you realize how shallow and weak it makes you because I was more than aware while typing it up.