Joseph: His point is that he’s Ashkenaz, Orthodox, and learned in Yeshiva; it sounds like back then that was called Litvish. The fact that the current use of the terms excludes all those who aren’t Chareidi is why he put the word “classic” in front of it.
I would be reluctant to start identifying as MO if I were him also. If he’s been one way his whole life, and for his entire upbringing they called that Litvish, it would be frustrating to have to change your identity when you haven’t changed your character at all.