I think you are missing the wider point. If you raise your eyes and look a little further than the Ed. Sup. in the Guardian, have a look in the Spectator and the open letter by Katherine Birbalsingh to the Education Minister.
https://www.spectator.co.uk/article/what-problem-is-the-education-secretary-trying-to-solve/
https://www.spectator.co.uk/article/what-problem-is-the-education-secretary-trying-to-solve/
Comments
Try this by someone with 25 years of education research.
https://theconversation.com/academies-havent-raised-pupil-achievement-theres-no-need-for-them-to-have-privileges-that-other-schools-do-not-247023#:~:text=It%20considers%20the%20academy%20programme,than%20the%20schools%20they%20replaced.
https://schoolsweek.co.uk/fact-check-do-council-schools-really-outperform-academies/