>>714648253 (OP)Kojima needed to get his foot in the door in hollywood, so shitcanning the VO for the protag in favour of a hollywood star was the most plausible way he could get Konami to satisfy his hollywood fetish.
As with all his MGS games where anything can be explained with "nanomachines", any question you have about Hideo can be explained away using "hollywood", he's literally that fucking simple-minded. He's a nasty piece of filth for using and abusing funds just to creep his way around into more and more prominent stars and staff, using company money to buy friendships.