Indeed, and Apple's pw manager is, as is typical, just a baseline implementation. I really need a full featured one so I can fix misfires (e.g. sign up on web, but the associated app doesn't set its domain properly), look for duplicates, get the info out for sites that can't auto entry (grr, js validation character-by-character) etc.
The calendar is another good example: adequate for many people, but trivially supplanted by a third party app (I use busycal) that apple treats as first class.
