Reason I think that is because a lot of features in ps3 cpu were not standard at the time plus this article says it would be hard to port this game to modern platforms: https://news.instant-gaming.com/en/articles/16364-konami-believes-that-remastering-metal-gear-solid-4-would-prove-very-difficult
You’re talking out of your ass, you can’t say “Konami confirms” about something you think is true because they said something else.