You're right about the reasons for the crossed up vocabulary. And there are many widely used enterprise CMS applications that get it wrong, too. There are other such areas of ambiguous common usage in SEO as well ("URL" versus "link" versus "page" for example) - but that doesn't mean we shouldn't strive for technical precision. Otherwise the myth building runs wild ;)
For example, there is such a thing as a meta title - and you can tweak that element all you want and have no effect on rankings whatsoever. Throw in a coincidental ranking change right after a meta title tweak and the story gets rolling.