I read the article —eye-catching title, not to mention the teasing cover image. So his thesis was: Manet was modern and Titian was what? Titian did have Manet beat by three centuries, but most times when you say ‘modern art’ there’s a different expectation. Perhaps modern because Manet came toward the exhausted end of the French academy? Perhaps.
I’ll grant it’s hard discussing painting, and Gambardella does yeoman’s work.