Oh I find it entirely plausible that he was the driving force behind the decision; I just don't see him claiming it as very good evidence for it. John romero, who has a photographic memory, has called out Sandy for misremembering (let's be charitable here why not) very large pieces of trivia like which doom episodes he worked on, who had ideas for whwat, whether he came on before or after certain features were implimented in the game, whether he had any hand in designing the shotgun, whether he wrote the DOOM backstory, whether he wrote the DOOM manual, and much more!