He never uses a strap for anything. I don't see why this is such a huge deal. It doesn't seem like their plan was anything more than "let's go out for 20 min and shoot a roll."
It's a fun little video that I got a good chuckle out of watching him attempt things like loading film and removing the darkslide....manual metering (aside: my iphone light meter almost always agrees with my handheld).
But the real question....is the Pentax 67 better?