What is missing from this discussion is that besides having hundreds of native InDesign files (way too many to convert to PDF files and yes the import of PDF is great!) there are times when I want to send an InDesign file to a client or another graphic designer. I cannot reasonably expect them to own Affinity Publisher. If I cannot import native INDD files or export to INDD then my use for Publisher is diminished, regardless of how fantastic it is. InDesign is an industry standard and if Publishers wishes to match or surpass it then indd compatibility is a must.