Joseph,
“there are those in Khal Adas Jeshurun who complain that Rav Shimon Schwab zt’l made KAJ too Yeshivish/Litvish.”
You do understand, there is a major Halachic diff between switching to Chassidish which includes switching Nusach haTefilah and Yeshivish…
But in any case, everyone did what they thought will keep the youth in touch with Yidishkeit and that is really that matters. Being a “simple” erlich Ashkenazic Jew does not fly these days any more. The same reason Chassidus spread out two hundred years ago..