Interesting but irrelevant.
The appropriate study would be of originally religious students and the correlation between their years of schooling and maintenance or loss of religious faith.
I am not trying to say that loss of religious faith among the “most educated” says anything about the truth or falsity of religion, only that more years immersed in an anti-religious environment has an effect. How could it not?
LOL, you want to make a stupid claim, then back it up.