Herb Glossbrener gives AC credit for an 800 press in his top 100 benches list or list of 700 plus benches, I can't remember which. But aside from him, I don't think too many people are crediting Anthony Clark with the 800. I don't know exactly why not having seen the video, but from what I read and hear, the lift was not a good lift.
I don't know if it is the reverse grip, or what it is, but although Anthony Clark was hands down the man when I was in high school, for some reason lately he does not seem to be getting much respect. Like I said, I don't understand it, cause he is a strong strong fella.