Yes, I should have written it up straight away and I did:
Right now this search function is not a Properties search function. It is a search that can handle searching for properties, giving one the syntax on how to do it.
But if I want to search for a property, I should have search results for that property alone, because I no longer am searching for just any text in my vault. Which means the search modal must give Property-specific results not text-specific (meaning any text) results.
With Properties, Obsidian has moved toward organizing/standardizing YAML keys, but the search is pure text search, giving incorrect results.