I think there is a lot of truth to that generalization, but I think a lot of the anime of old look came more from the fact that Japanese culture was really influenced by Western movies and style back then.
"When you see a John Woo film, it's comforting to know how shallow the world really is. The full force of the manly coolness factor with a peice of nose hair sticking out from the tiny crack between manly and cool, exposes the thinness of the male hormone factor. It takes an idiot to do cool things. That's why it's cool."
I was a North American Fall Webworm in my past life. Those were the good old days.