They must be expecting about 90% to be poor learners then.
So most of the students, who speak Urdu and English, barely understand anything they're memorizing.
I had formerly assumed that Arabic language classes were part and parcel of the memorization project, kind of the one benefit that could be expected to accompany the drudgery.
It's pretty amazing to compare this to the Talmudic study that Jews undertake - where comprehension is key and learning at least three languages is standard.