@jmacgreg, to clarify, when you describe updating the metadata URLs to include the links to the full text, if I understand this correctly, this was the addition of the collection elements under the doi_data element, which each collection pointing to a galley. The actual doi_data resource URL still points to the abstract landing page.
(As a developer’s aside, this may cause a problem if the abstract landing page is suppressed, c.f. Article summary page link from TOC - #9 by boockmi)