Yes, and it's wrong no matter who does it.
I think these people are just treating customers as stupid, and I find it insulting.
Let's be honest, if someone gave you, as an individual a challenge project, and they said, ok, for today we are all going to go out and shoot the video with the iPhones I'm handing you.
I think we all would know what the intention was, if not specifically stated. It would be, using this hardware go take some footage.
Using the hardware, PLUS an additional $50,000 of hardware, whilst not explicitly banned by the rules, would not be in the spirit of the task.
It's stupid, when they do this, as people DO see thru it. It is always a negative when we see how they cheated, and it would be so much more impressive if they just used the bare device as they imply.
And this goes for any company.