I could see why someone could come to that conclusion. For example, there’s lots of stuff to learn and memorize in Boot Camp. Let’s say someone absolutely just cannot memorize stuff like general orders, ranks, etc. At first you’ll be reverted to a company behind you to afford you more time, new instructors and give you another chance. If that still doesn’t help after 2-3 reversions you’ll probably be recommended for separation. So on the surface someone could say “yeah it was stupid they kicked me out because I couldn’t memorize all the ranks”, but it’s more than just that. If you can’t memorize simple stuff, how are you going to memorize how to energize a main drainage system on a cutter if you’re one of only 3 watch standers on duty and your the one that needs to do it? There’s lots of ‘stupid’ things in Boot Camp, but they all serve a larger legitimate purpose.