Yes, I completely agree. But perhaps you could be smiling, at a nice sunny location. The human element would be there. That's not a "prison mug shot". Plenty of the photos on the site are like that.
But if you're trying to say "Look, you're going to put all these people out of work if this thing passes", i.e. you're pointing out the human element of what the bill could cause, what is an average, uninformed person ("the world", as the website says) going to think when they see a bunch of people making ridiculous poses?
If you're trying to make a political message clear, is this how you want to represent yourself?