I went to a state school in the North of England with a GCSE pass rate between 30-40% and this is a fair description of what it was like. At the time the performance of all schools was based on the percentage of students achieving at least a C including Maths and English, and as Goodhart’s law suggests this inevitably meant the school’s resources were optimised for getting students around the C grade borderline to pass while all other students didn’t get an education suited to their ability. The Gove reforms included changing how schools are assessed to a value-added measure, that I believe is commonly used in the United States, which has created the incentive for schools to focus on all students rather than just those near an arbitrary passing grade. The deeper underlying issue that’s harder to solve is the anti-aspirational culture that pervades through a lot of schools in deprived areas, in my experience most students didn’t really get the value a good education could bring to their lives and like the original comment treated it like internment rather than a route out of poverty.