That is true... but what if one of the pigs slipped so fast that the other piggy (or piggies, heh) didn't have a chance to brace themselves? That could be bad!
Though a rope is obviously used often in mountain or rock climbing... because I just do that kinda thing so much, right?
Though, you are right... after the first pig fell, I think they were paying a lot of attention to focusing on both the rope being firm and secure and to keeping their footing just right. And hey, it
almost worked! But before their buddy fell, I think they were focusing most on keeping their footing, so maybe they wouldn't have to worry so much about the rope.