ORCIDs (ID indirection) definitely help handle this at a metadata/discovery level. yet non-normative changes to PDFs should be very reasonable. As a person working in the long-term preservation world: preservation doesn't require/imply immutability! [🐦 🔗 https://twitter.com/kiwinerd/status/1072893966566051840 ]
also, an unpopular opinion in certain proprietary circles: publication != preservation. that is, casting everything in cement doesn't necessarily help you anyway. so be amenable and empathetic. particularly about name changes.