(Like, I’m making a cute response here, but there’s not exactly an objective standard for objectivity, when you come down to it. Turtles all the way down and all that.)
Just because you learned some random fact in your bar prep class doesn't mean "The bar is bullshit" as you claimed. It means your bar prep class included information that wasn't strictly necessary.
Probably the most objective standard for becoming a lawyer that there is. More objective than the hiring process and law school and college admissions, especially when many of these are de-emphasizing standardized testing.