^Not sure what the correlation there is.[...]
Turtletrekker, the correlation is obvious; you actually didn't see it?:
In both cases, Christopher is (and was) violently opposed to casting caucasian actors - despite the lack of in story/movie business arguments strong enough to support such a radical stance.
His attitude is quite discriminatory; as such, he, full of moral righteousness, calling others on a supposedly similar attitude is more than a little ironic.