I think ISC2 set you up for failure on purpose for 3 reasons. To make sure most people do not pass the test. The reason is not that the person did not Study or study hard enough, but I think for these particular reasons below 

1. Exam Type CAT. With the computerized random test, they make sure that you can't mark a question if you are unsure of the answer and come back to it later. Also, they add a fan to the flame by making sure that when you get a question wrong they ask you more of the same type of question wrong to lower your score 

2. They give you an unreasonable time limit. The test comprises 100-150 questions because it is the CAT type of exam. However, you have approximately 1 Minute or so for each question. I say not enough time to read, and comprehend all the question and all the answers and comprehend it and be able to eliminate the wrong answers to pick the correct one. Especially when you are given a scenario-type question that is very tricky and uses tick words to try and confuse the exam taker. 

3. They throw in 50 questions or so that are going to be on future exams. I say because of this, the test take is unable to evaluate how they are doing because We don't know which questions are the throwout questions. Therefore that adds to the stress of taking this exam. Also not know when the test ends so you don't know if the test will end at question 99 or question 150.  

Therefore besides the exam itself being hard and filled with trick-type scenarios these 3 reasons in my opinion add to the stress of taking this exam and a higher chance of failure. If I am wrong tell me why please, and I will remove my article.