Lonergan, it seems, did not dwell on beauty and the sublime, but on art. Joe Flanagan says that his chapter on art in The Topics is the high point of his reflection on art: it comes between the 3 pages in Insight and the 2 pages in Method.
The 19th century debunked the link between beauty and art. So when Heidegger, for example, reflects, it is purely on the work of art, not on beauty.
Unless you take beauty as a transcendental in the scholastic sense - so you don't get stuck on prettiness, Glenn Chip Hughes said last night at the Workshop.