To quote the original article:
that 50% of the graduates of Modern Orthodox high schools are no longer Shabbat or Kashrut observant within two years of their graduation.
This does not shock me in the slightest. I imagine most “graduates of Modern Orthodox high schools” are only there in the first place as a private “prep” school (which is what we see in areas like Teaneck, and schools like RAMAZ) with some “Jewishness” mixed in to make it socially acceptable. Many of those never see their parents doing anything Jewish except to light the Menorah (with bulbs). That is what you get for being a prep school instead of a yeshiva (as well as why tuition is so much higher in these areas).
V’Haryah, Mrs. Trump (whose children would need to be M’Gayer, IMHO).