Was he reported to have
omitted a couple of poses, or flat out refused to do them?
Ya think he would be arrogant enough to be like
Hey, I'm Arnold, if I don't want to do something, you can't make me, and I'll still win! You wear the IFBB blazers, but I'm in charge. 
There are those who believe that the '80 Olympia essentially became a protracted publicity trailer for Arnold's burgeoning movie career. I wouldn't be surprised at all. Most of us will never know for sure.
Now... Those very early Arnold pics down there. Those are the kind of pics that remind the rest of us that the great Arnold is human, and that he once looked rather unremarkable. Having said that, it was obvious from very early on that his arms were a bit special.
Between Europe and the States, it's clear that someone took him aside and showed him how to pose, eh?
Those pics, I suspect that they are from 1964, which would make him 16 or perhaps 17. By 1965's contest season, at 18 years of age, he was way better than that, thicker. Have a look at the Mr Europe Junior pics in his autobio.
By the way, note that he's referred to in the copy as a 'model' LOL! And that chair shot reeks of faggotry!
The age discrepancy can be easily explained, I think. Maybe the photographer/mag editor required models to be 18 or older, keep shit above board. We all know Arnold's never been above bending the truth!
Maybe he lied about his name too. Whoever did the write-up thought his name was Arnold
Schwanenecker LOL! (Is that German for 'swan-neck'?)
Then in another shot, his name is
Schwarzenger!
TNBT