Robby in his book, is mostly indifferent to Waller. Waller was nice to Robby when he started at Gold's, but then Robby started seeing Jealousy and slight racism, as Robby always does.
On the Union, he doesn't discuss this filmed version (or maybe this is just early into it), but -
"Just when I was doubting that I would be able to make a living at bodybuilding, the guys began talking about starting a union for bodybuilders. We were all excited, because we thought this could really bring some needed changes to our sport, particularly some kind of guaranteed income. Even though Muscle Builder portrayed us as a group, we were divided. I started to see how Joe had made that happen. He would give one guy a paycheck and not another. Then he’d tell the first guy, “don’t tell the other guys or they will want to get paid, too.” So no one dared discuss their pay, for fear of retribution.
The meeting about forming a union was held at the Holiday Inn on Colorado and Pacific in Santa Monica. We all showed up, including Arnold, and took our seats. I was surprised when Joe and his brother Ben, who was president of the IFBB, walked in and took seats at the table in the front of the room. I thought, “Well, I suppose we have to meet with the heads of the organization to discuss and agree on new rules and regulations.” This was the first time I had seen Ben, probably because he ran the federation from his Montreal office. Ben was stiff and lanky and carried himself with more of an air of importance than Joe who was looser and had more of a swagger. Whereas Joe had the power to make or break a bodybuilder with his magazines, contracts and influence, Ben held sway over the judges and our placing. I could see he was not happy with the idea of giving up any of his power.
Without any hesitation, Ben stood up and said sternly, “There will be no union,” hitting his clenched fist on the table. With that, Arnold stood up, walked to the front, kissed Joe and Ben on their cheeks and walked out of the room. All of our jaws dropped, because we thought we had Arnold’s support behind the union. We had all talked about it and agreed that if we came at them as a group, they would have no choice. Now it was clear whose side Arnold’s was on."
From there, he talks about how the whole thing fell apart.