Afraid my Latin is limited to that which appears in 'Life of Brian' but as someone else has already pointed out it's a meaningless distraction from the point at issue (unless of course you went to HH too and learnt your Latin there?).
There are plenty of HH parents, staff and pupils who do agree with the OFSTED criticisms - like the poster above who said they'd removed their DC or this ex-pupil commenting on your petition
"There is a huge problem with hill house. All you need to do is talk to the teachers at the 'bottom' of the process, and the pupils who use to go there. I myself was a pupil at Hill House, and I can say for sure that my opinion of the school is shared with many. Hill House fails to prepare pupils for rigorous competition which takes place in the last couple of years at the school. yes, the children are happy, but we were only happy because the teacher used to walk in ten minutes late every lesson, and we would run around and throw things around the room. The teachers are simply not paid enough, and that is the reason why the school has changed so quickly. A couple of years ago, Hill House had some perfectly capable teachers, now the best teachers have left the school. The teachers have no motivation to teach, and Hill House is seriously struggling. No wonder all ex pupils want to see the school get shut down."
This is confirmed in the OFSTED report where in response to a questionnaire more than half of the teachers either 'disagreed or disagreed strongly that leaders promote their professional development'.
But as another comment on the petition says:
"I can sit here and write all day but I don’t think I would convince too many of you to reconsider your position based on reason and not emotions. Understandably, it is difficult to say, we sent our children to the wrong school. "
Time to stop burying your heads in the sand and start pushing the school to make the changes required. I doubt very much OFSTED would ever close it but it is certainly going to have to do something to show it is tackling its failures or new pupil numbers are going to dwindle rapidly.