I have no doubt that Connor House is a good school and produces results. However, taxpayers should not have to subsidise schooling that is only available to those with the disposable income required to afford it. The arguments about funding of grammar schools are entirely different because there the issue of entry is almost entirely based on academic ability. Prep schools are for those with the money and it is just not acceptable to have that funded by the state.
I cannot bide the Education Minister but this is one decision she has actually got right.