They have met the same standard.
They had ADDED material of interest to them as a Christian school. They have not SUBTRACTED anything.
Also, please note the article's statement: "Young....With stellar grades, competitive test scores and an impressive list of extracurricular activities."
In other words, he has high SAT and ACT scores. That means that his education was just fine when compared with others.
"They had ADDED material of interest to them as a Christian school. They have not SUBTRACTED anything"
I don't see anything in the the article that indicates the course met all the requirements for accreditation and merely added extra things. I've been through the accreditation process as the curriculum coordinator of a science department. The regional accredidaton association didn't have any problem with our religious curriculum (I also taught a Judeo-Christian religion class) - they were only interested in the academics, the overall environment in the school and the quality and educational background of the teachers.