It's not about extra ram or anything, it's that I feel like the PC gaming community as a whole have a certain visual quality level in their head that they equate to a certain strength of hardware.
No one is complaining about Witcher 3 or ROTTR requiring powerful hardware to run smoothly because of how those games look.
GOW's visual quality does not correlate in a logical way to the hardware the devs are saying is required to run it smoothly.
The remastered version is just now beginning to approach the visual quality we were shown was possible for the game TWELVE years ago