Square, please read my post. There’s nothing in the sources you bring which contradicts it – rav hirsch wasn’t that much of a chidush in principle, because rishonim and achronim had long since advocated havijg a knowledge of chochmos leshem shomayim, to understand Torah better, etc…his chidush was in institutionalizing it into part of chinuch, synthesizing it with the teaching of a parnosa. While neither learning a trade or learning chochmos were inherently new, making them institutionalized was a novel concept.
It also ran contrary to the rema which says that one may not learn chochmos b’kevius. Rav hirsch i don’t believe ever addressed the rema directly, but i believe his defenders say that for parnosa there is no such limitation; rav elchanan wasserman writes something along those lines about college, with the prerequisite that no apikorsus be taught.