The logic is that road deaths go up during holiday periods (which is sadly a statistical fact here) so they ramp up enforcement and double the penalties for those periods to try to correct for it. I’m not a huge fan of the idea, but from a purely statistical and scientific standpoint it does at least make some amount of sense. My individual circumstance is a bit of a curveball because my punishment was way outstripping my crime, but I do have some understanding for the idea of double demerits. I think my issue was that what should have been a one-point offence (doubled to two points) became an eight-point offence just because I was on a provisional licence. That part I’m still very salty about.