My immediate counter would be that a Macbeth chart isn't the real world
I've read that there are issues with dyes (print, textile) being "seen" differently by emulsions (different from each other as well as different from the human eye).
So, two items that appear to have the same color (to the human eye) may very likely
photograph as different colors (one may be accurate, the other wildly inaccurate), with different films behaving differently from each other.
I'd think that this would place any printed color chart into the realm of abstraction to one degree or another, unless there is some way to guarantee that the dyes used in each section are 100% incapable of being "misinterpreted" by
any film. But, if there is a possibility that two charts, using different dyes, appearing the same to the human eye, will photograph differently, then who is to say whether it's a "film issue" or a "dye issue"?
I'll stop meandering now, and close by saying that I don't think that a color chart is
absolutely "final word" in questions of color accuracy for films.