Arnold's stunt double in the beginning

I was watching this earlier for the first time in years (possibly the first time in HD, too) and I thought it was hysterical how often they showed the face of Arnold's stunt double during the beginning scene of him escaping through the snowy woods. There were sequences where the camera was focused on the front of the stunt double as he came toward the screen and you could see clear as day how it was definitely not Arnold. Was this ever mentioned in a commentary track as to why they didn't try to obscure the stunt double's face? Arnold was pretty much the most recognizable action star in the world at the time, so it seems weird how Cameron was perfectly fine with exposing the stunt double a half dozen or so times during that sequence.