What makes you think ofsted inspections are helpful, accurate or constructive in any way?
Judgements have been shown to be almost entirely random
Inspections cause massive stress and time wasting, and almost always a dip in results
The hoops jumped through for ofsted are ridiculous
And a school that has had a long gap, will be blowing in the wind, expecting a call any day, obsessively following every twist and turn of current faddy ofsted guidance so they dont get caught out, and the stress on staff is enormous.
Once the inspection is out of the way, then staff and managers can relax for a few years, and make decisions based on common sense, rather than the latest crap spouted by ofsted.
So you are extremely unreasonable to think that a long gap between inspections means schools are not being controlled by ofsted, these schools are controlled MORE by ofsted.
And you are unreasonable to think an ofsted judgement means anything