As was the case with the Yeshivah of Flatbush story there seems to be some people who love knocking kids that are not the 100% frummie frummie. My sense is that those that knock are mostly teenagers and I have no idea what motivates them to knock other Jewish kids.
Waterbury is an amazing Yeshivah with an amazing Rosh Yeshivah and amazing rabbeim. And yes the Rosh Yeshivah has a heart and instead of caring about his kovod he cares about kovod shomayim. And yes a few of the students are kids who were thrown out of other yeshivahs- as he knows most boys who were thrown out of yeshivah nowadays would never have been thrown out in the old days. And those boys who weren’t thrown out years ago are today’s choshuve rabbonim and rosh yeshivah’s. Waterbury has great kids! Kol hakovod to Rabbi Kaufman and Rabbi Kalish.