I think you're wrong bro. These are top of the line athletes who have some of the best genetics you can ever imagine. I would say at least 5% of the league has 5% bodyfat. Just my opinion.
I'm not an expert on this stuff, but my understanding is that if you're body fat is too low for an extended period of time, your endurance, immune system and ability to resist injury all suffer (not to mention fertility). Therefore, I'd be surprised if there were too many/any guys as low as 5%. It would be really hard to maintain that level during the season because they need to eat a lot of calories, too. Body builders train and diet so that their body fat level "peaks" for competitions. They don't maintain that low level for long periods.
1: none of these guys are 5% bf. Maybe the Timmins dude.
2: None of them are jacked at all. Seguin and Rod the Bod look to be pretty strong though. Ivanas, added later to the thread has a pretty big arm.