I believe safeguarding should be an entirely different check, apart from ofsted. And neither should be graded as they are in their current form.
Safeguarding, as so important, should be an annual check - admin side, continual support/advice, access to answers for queries available at all times, etc. A simple - yes, all is fine or a this needs checking, this is how, we will check in in xxx days to see it's been done.
At the moment even a basic safeguarding admin check can render a whole inspection inadequate, before the inspector has even walked into a classroom.
Ofsted - non-graded; is this school providing children with the national curriculum requirements? Is leadership supportive and effective? Are results in line with national averages, for the make up of this type of school and catchment?
There are already systems for teacher/TA and other staff monitoring in schools, done by management teams, SLT, etc. these include internal observations - done over time, not a one day snapshot.
We've just had ofsted. 3 subject areas were selected and observed over two days. 3 out of how many? What happens if one of those is poor, but the chosen ones are good? Rest is ignored under the current system.
The inspecting team, or single inspector, can be good but they can also be awful, coming with an agenda with their mind made up before they even arrive. In my years of teaching I've experienced far more unsupportive inspectors than supportive ones, and every inspection has been a highly stressful event regardless of the outcome.
The current system is not fit for purpose and it needs serious reform.
As for a department that feels it is appropriate to add a throw away bullet point detailing the headteacher's death, which is reported to be as a result of that ofsted inspection based in what her family and friends have said - well, it's just callous and inappropriate. I mean, when someone typed those words what in earth were they thinking?!