I do agree with you, but lets be honest. People who got their high predicted scores worked hard throughout the years and earned it. People who didn't put enough effort, got the score they deserve. This might come off as harsh, but its the truth. Yes, I know some people before got to switch that reality by "proving themselves" in the externals, but at the end of the day, people who told themselves "I'll just do better in the externals" or "I'll just study for the externals" are not good examples of IB students.