That would only be true for distinctions that make a technical difference.

There are also distinctions that only exist for someone to flout[1] their superior knowledge of the technical terms. That is a social status issue, not a matter of precision.

Best example of that case would be collective nouns: "oh gosh, you're supposed to say a "crash" of rhinos; you can't just say a "herd" or "bunch"! ~adjusts monocle~

Best example of "precision matters and can cause confusion" would be "literally" or "biweekly". It causes confusion when people can't rely on X-weekly meaning "X per week" or "every X weeks". You would be majestically justified in prodding people to stick to the same convention to avoid confusion.

But there any scenarios where "signature vs invocation" actually matters to the point that you would do the wrong thing as a result of someone ignorantly flipping the terms? The only thing I can think of would be if someone said, with no other context, "change the parameters to fix the bug".

[1] I know, it's "flaunt", not "flout". That's the point: they don't compete for the same semantic use cases, so they don't cause confusion.