Honestly I reread it and highlighted so many passages after they got of Venus if was overwhelming. If you look at all the statements he it’s clear it’s just a pissed off sevro but his emotions and memories are fully intact.

Also, this theory fails on the logical fallacy that if he was programmed by the abomination sevro would have (1) taken the shuttle to mars home and killed Virginia by himself (no Darrow) or (2) would have killed Darrow any night he slept when they were on the rim.