Interestingly I have heard quite the opposite. However to say that this game is more of a port than a remake is a bit of a ridiculous remark. As it features a lot of reworked and new material, it's a strecth to compare it to a port.
- New Graphics Engine
- New/redone cinematics
- MGS2 moves (rolls, ledge hanging, First Person Shooting)
- Reworked enviorments (Areas have changes to allow for more use of the new moves)
- Improved enemy AI
- New voice overs
- Lockers, Dogtags, MGS2 weapons...
If you look at a port the features are generally:
- Improved graphics (higher poly count)
- Bonus level / bonus weapon
To compare say this game is more of a port than a remake is a bit of a slap in the face of Silicon Knights, Nintendo and Konami.