I have a feeling this has to do with everyone just doing well on this sitting. Everyone had a year and had the advantage of taking the exams on a computer.
Normally, you may have done well enough to secure a 6,7 or even an 8 but because there were people that did better, these scores were lowered down to 5 after curving.
I felt so uneasy after coming out of the exam because I thought I did well but it made me think how easy it must have been for everyone.
With these exams, it’s not about how well you did in general, it’s about how well you did relative to others.