I've only seen pictures of him, and he looks great.
Yes, it seems like overkill, but there are men who can tolerate this volume.
Also, just from writing it like that, we don't know if those are sets taken to near failure and/or they are including some warmup sets. I can't see someone having any quality in sets past a fourth or fifth one if such straight sets (same weight for all) are being done to failure or near failure.
However at the end of the day, the guy got his results!
Anyway, it seems en vogue to stay away from high volume considering all the enthusiasm for upper-lower splits and full body programs even though, as we've pointed out god knows how many times, amazing physiques have been created with high volume and low frequency training.