Doesn’t make it a bug though, and this distinction must be maintained otherwise we live in ignorance and will not help our cause as users.
Basically if the question is put (you can even poll this), I think most users would like a C6 rather than no C6 even if it served only a partial function, as what we tend to so conveniently forget is that those who purchase the software early have the chance to learn about the new features so complaining likely has little purpose.