>>717380263 (OP)
The image is “true” but RE4 is not trying to be the same kind of game as the originals. If it had any of those changes, it would be worse off for it.
Less slots is less weapon variety= worse action
Complicated puzzles make puzzles the focus instead of a breakup from the action
Less saves means the player can’t be as risky and dynamic in combat
More ammo for more/stronger enemies
Backtracking would shift gameplay away from action towards exploration. RE4 replaces map design with room design- it has complex rooms that create exciting combat encounters instead of stimulating exploration.