Was that the only shot of the crowd they had all night? If so then maybe your argument has merit. He's Aaron Rodgers and he cheering for a fellow Packer why wouldn't they cut away. I know they have screens all over venues like that but do the guys on the stage see what we see? Did Butler even know they cut away to Rodgers, I doubt it. He's looking at the crowd as he is walking out not at a TV screen. I'm not even convinced he was waving at Rodgers when he came out but he may have been. I'm not even convinced he knew where he was sitting although he probably did.
I probably could have said it a bit less snarky and for that I apologize. I just think you are reading something into it that was not there.