In my personal experience, people tend to fill in the forms themselves, do not compare what they can/can’t do to the scoring system and just write a load of (irrelevant to the criteria) waffle so It gets rejected.
They then often seek help at CAB who assist with the mandatory reconsideration who tailor the appeal form to the criteria it’s actually assessed against.
Further, I also think they have an policy to reject nearly all of them automatically initially to weed out who can be bothered to follow it through or those who will give up at the first hurdle.