I’ve had the same sense. From your examples, I wonder if part of it is that, while the form is that of a platitude, you’re giving it substantive direction too:

I’ve had the same sense. From your examples, I wonder if part of it is that, while the form is that of a platitude, you’re giving it substantive direction too: giving it an indication of what you’re satisfied with, as distinct from what remains to be done.