Yeah, I agree there, the first thing you learn is to "not move" People that have been in accidents, and I would think that to pull him out With the helmet and the neck pad still on would be atleast more by the book.
But I dont know, they presumably/hopefully know what they are doing, and they probably had a reason.
*I may add that I have never heard of anybody hurting themselves in Formula Offroad before. Even though that seems weird so much they roll and crashes, but it is pretty low speed when they roll, and maybe the sand and dirt often take most of the energy away from the collisions.
But it is one of the best Motorsports in my opinion, especially to watch.