I never said the clay sculpt for the hands were different from the final product though, just the heads and nearly always, I only said the hands look not great which I believe to be true.
Dan Trachtenberg opted to go for that sculpt, but for all we know that's ADI's fifth go round on the gloves and he just decided to move on than have them do them again, we just do not really know.
We do not even know how far back he planned to alter everything with CGI additions or replacements, could be just like Alien Covenant where everything or most everything got designed as a CGI stand in from the get go.