A 2:2 degree is not good enough for any decent grad scheme these days. Being a member of a Royal Family maybe swung this “job“ his way. The idea it’s on merit is laughable.
One thing that leaps out at me is DC getting A*AA but going on a course that requires ABB. That looks like poor university guidance to me. Or not needing to bother much. Most schools are open about destinations. My guess is they are not great.
The results are better than the average comp. I think posters missed that % quoted was 7-9 grades. Not 4-9 grades as most state schools would report. So ignore that. It’s not great as far as private schools go but if DC get value added then that’s ok. But is that enough for you?
You don’t seem to have many other options. It isn’t a school that would appeal to me, or importantly my DC. I let my DC have a big input into the boarding schools they attended. They were living there and were going to experience it on a daily basis, not me. If your DC prefers the life there over and above other options, and you are prepared for iffy academics, then go for it.
Academics would trump it for me though. The need to be with like minded academic children (not huge numbers) does make a difference to achievement and finding like minded DC to work with. Gordonstoun seems to have lots of diversions for the bright child, and it’s so remote, I think it’s difficult for DC to have a varied life outside school. By that I mean that our school organised trips to the London theatre, art trips too, cultural visits to other cities, loads of sports matches with other schools etc, inter school competitions where schools were not too far away. Gordonstoun makes its own life but you have not want other enrichments for your DC. It seems in a world of its own. My DC would have run a mile but academics mattered to us and being nearer to larger cities for cultural activities.