Fucking TV shows, attempting to deliver what viewers WANT to see. I love powerlifting, but have you EVER seen a powerlifting comp on TV? Powerlifting is boring as shit to watch. And there were still plently of static strength based exercises.
It would be one thing if you were complaining that the sport of Strongest Man was incorporating more events that you did not like. But no (and even then you'd still be a douchebag). You are complaining that the WSM, which you have almost no chance of EVER competing in, offers events that cater to its audience (mostly non powerlifters) rather than you.
And like another poster said, Marius has won plenty of strength based exercises, off the top of my head I know he won the 2003 deadlift comp and the 2004 safe lift.