E.17.AUD:5.2 - Whole-unit interpretation-shift case

A memo starts about one bounded architecture question over an inherited lineage or move, then shifts into wider rollout or approval language without declaring the transition. Repairing one sentence does not stabilize the publication unit under review because its concern and carried publication move have widened; that does not by itself establish a changed EntityOfConcern. The honest move is PublicationUnit Primary-Subject Discipline.