It was indeed me Hugo!
I agree about the 'over offer' issue - I was wondering whether it might be addressed by asking students to volunteer to defer. Doesn't help with maths courses where STEP is used to 'further select' of course.
I agree about overprediction as well, though for those universities that then often allow lower grades in anyway, that might not matter too much to the univs.
I do think it would be hard to use mocks instead when students didn't do them on that basis if you see what I mean. Coming round to the idea that where there's been any course work, that may be used for the entire grade.
So stressful for this year's students - many sympathies to them and their dparents!