That's an interesting take. I think matching these services isn't a necessity, but getting a polished look-and-feels just helps adoption. Adoption isn't an exclusive scenario and everyone is free to choose and mix how they see fit.
My private collection won't ever compete with Netflix, Google or the like, and that's completely fine. It will stay a private selection of media with a strong personal preference - it ranges from research to entertainment, and also includes stuff that documents my own individual history. It'll shrink and grow as I want it, and if it reaches a scale that makes the jump from archival to hoarding work I'd simply need to reconsider my preferences.
Here's my take: The scaling issues of these tech giants won't ever reach my personal archive and any challenges with re-indexing, data analysis etc. should be completely approachable on SOTA hardware. Running anything that improves the searchability of my own archive can be run locally and in the timely intervals I prefer. To have this kinda quality approachable is a huge thing, and I can't wait until I can self-host some RAG enhanced vector search engine for a personal archive that grew overs years to take shape.