Cags are not fair-merely unfair to a different set of children.
Your dc's school has done cags as best they can. They've worked for a few years on being more accurate on predictions and are pretty confident.
The school down the road from you hasn't done as much work on it, and they have done then generously and then added a grade on because they think they will be moderated down (as I saw someone say their school was told to)
These GCSE students are competing for the same 6th form places. So the students in the first school find that they're being refused a-level choices and even places due to having grades 1-2 places below the other.
They are being discriminated against for having more honest teachers.
For A-level you will get the same but struggle over uni places.
I don't think the algorithm was fair, but cags would equally well not be fair. I have a GCSE dd who will probably be hit by the algorithm.
A knee jerk reaction giving way for popular opinion is not what is needed. Cags basically means their results won't be taken seriously. And for those with honest results, it means that they're doubly discriminated against. They do not have a raised result, but people will assume it has been raised.
Yes, more work needed to be done, but they had limited time to produce something they never, until this year realised they might need.
Personally I felt right at the beginning when they first announced it would be cancelled they should have said everyone restarts the year they are currently in. It would mean raising the compulsory school age by a year which seems to be a popular thought, and this year would get extra time to prepare. It would also be better for disadvantaged children to have not effectively lost half a year, but gained extra time.
But it would have taken confidence from a government that was still pretending lock down might be finished in 3 weeks.
Did you know that more students got in to their first choice uni than ever before? Including those from deprived background?
I'm not sure it is a majority of a-level students feeling it's unfair-just a vocal group.