yid, thanks for bringing this quote, hope you mis-represented it by mistake and not on purpose.
This is a quote from RYBS eulogy for R Heller. He is using “modern Orthodoxy” (note my capitalization) exactly the way I use it above: a modern state of “orthodoxy” in general – that I guess RYBS is trying to improve and bring it back to the old ideals. Here is the quote in the context, so you can judge by yourself:
As long as Rav Hayyim was with us, among us, there existed a strong tie between us and earlier generations. . . . When I visited him at home, on the West Side of Manhattan, with its congeries of bustling, hollow, Jewish life; with its synagogues, societies, clubs, and their auxiliaries, I always felt as if I were entering another world, as if I had breached some border separating two realms of being—the domain of earlier generations, of Shakh, Taz, and Gra, and that of **** modern Orthodoxy ***** , with its snipped wings and rootlessness, unable to fathom the depths of religious experience. . . . Moved by old, forgotten tales, he chuckled and sorrowed with his heroes. Images he described came to life, pushed their way into his modest room. Do you know where this power came from? Not from any art of speech or imagery! He never used a metaphor. He lived the events he recounted. He himself belonged to those generations, whose greatness he transmitted to us. . . . O he was a remnant of the ancient scribes.