BocoDragon
or, How I Learned to Stop Worrying and Realize This Assgrab is Delicious
While this is a neat way to put it, it doesn't work perfectly, because MG2 had a better story in my opinion than this game. And Metal Gear 2: Solid Snake still exists as a pure Metal Gear game with no "Solid" moniker, and no cinematic cutscenes or hugely detailed story monologues like later games. Things just fall flat on their face in the latter parts of V for me...
I agree the gameplay is very, very good, but it isn't perfect either. It's darn close, but not quite.
I didn't so much mean that it's a good Metal Gear and not a good Metal Gear Solid... though I did mention Solid because it seemed to me that's when story started to matter. But touche, it was already pretty involved in MG2: Solid Snake.
My main point is that it's the ultimate refinement of the stealth genre which began in the first MG.
It's not perfect, no. But it is a significant gameplay/scope increase over any previous game, so it is a kind of high bar of stealth that is incomparable to any other title. How could that high bar of Metal Gear stealth gameplay be anything but a great Metal Gear? Even if it didn't try for story at all....