Just a little counterbalance, and this is more questions to be explored than answers of any sort. I'm a primary headteacher so know how Ofsted (but not secondary schools) work.
First of all, the inspectors entering the school would have had an awareness of the suicide of a student last year, and the criticisms directed at the school at that point. This may - or may not - have been valid. But the over-riding purpose of the inspection in that context (rightly) would have been to thoroughly test the school's safeguarding procedures. Instead of sampling three child protection files, they will have read as many as they had time for. Instead of talking with a group of pupils, they will have talked with many. This vastly increases the probability of:
(i) uncovering weak practice in the school (good), but also
(ii) encountering those students who have experienced something untoward, and who are not satisfied as to how it has been dealt with (of which there are going to be some in any secondary school; good that they are uncovering this, but not necessarily comparable with the inspection of the school up the road).
The odds were weighted against them from the beginning; they were more likely"to uncover things here than in a random inspection of a random school.
Secondly, something making me uncomfortable about the judgment - take a look at Parentview, where 93% of parents felt their children were safe (and of a sizeable sample). National averages for all Parentview responses tend to be low 80s. If you compare other high profile inadequates (recent press on Oasis Isle of Sheppey and Abbey Faversham), you've got 50% and 33% unsafe respectively. Whatever the problem here is, the parents don't seem to think there is one. I've never seen that kind of discrepancy before.
I am not - for one moment - saying the inspection was wrong. I don't know, I wasn't there. I don't believe, however, that Ofsted is a perfect system, nor that you can't find this (and other) issues in secondary schools if you dig deeply enough. None of which makes what is described in the report in any way acceptable - if anything, my comments are pointing towards this being more common in other schools than posters might think, and potentially worse than at this school?
The OP needs to speak with their child, and other parents, about their lived experience of the school, and go from there.