So, according to Hurwitz, Bach, Mozart and Beethoven were "nationalists"? If no, then why were they different? I.E. they were nationalists? The problem with Hurwitz is that his notions about music are strewn with cheap cognitive dissonances, quite apart from poor taste.
He enjoys making people angry with over-the-top, personal pronouncements presented as astute, intelligent observations. It's what he does for a living, I guess. 🤔