Yes, this is all a horrible post, game engines can’t really be compared directly. There is no one size fits all.
EA thought that and tried to apply Frostbite to their entire catalogue. What worked amazingly for Battlefield/Battlefront was a disaster for Dragon Age: Inquisition, Mass Effect Andromeda, and let’s not forget Anthem. Engine was optimized for small maps and quick gameplay, but was horrible for large open worlds and RPG elements.
The reason Unreal requires such heavy hardware is because they’re trying to be a one tool fits all, but that requires making sacrifices.
OP’s entire post here is incredibly naive. It’s apples to oranges.