I didn't even know the Stick Slider was gone. I jumped into the competition during the end of the third stage. Am I whining about spoilers? No.
Now it leads straight into the Unstable Bridge.
[spoilers]There was only 2 fails on the Salmon Ladder and Unstable Bridge if I remember correctly, SL fail due to injury (I'm pretty sure jun was injured by the way he was holding his arm between the LG and JS) and the UB fail was just messing up the balance after dismounting it[/spoiler]
Face it, they're not gonna bother changing the bar for the Salmon Ladder out of all of the other things that they were working on in Sasuke 24. Like the rest of you pretty much said, it was already there and therefore simply convenient to leave it be.