If it's not for self insert purposes maybe it's because he always wanted it to be a primarily POV game? However, later in the game he chose to include some wide-shot third person renders. So maybe as an intermediate between third person shots and faceless-POV he chose the box.Yep those games do that. The reason being, especially for MNF, is that male characters in HS look like ass. Killer does it in a creative way though, so it's not so bad.
BD doesn't have that excuse. DAZ males look fine. So it's just him being weird for some reason.
I don't even think it's for self-insert purposes.... as I said it's a very weird, because nobody can convince me that a huge black square is better than just showing the MCs face.
But yeah, still a weird choice. I remember being able to mostly ignore it when I played WVM, so it wasn't too terrible for me.