That's why I didn't include it, it's more of a Crysis game than a Far Cry game.
It'd be similar if I made poll about Red Dead games, I probably wouldn't include Revolver because of how much a far cry (heh) it was from what we now think of Red Dead games.
Or a more appropriate example would be if I made a poll of GTA games, it would be pointless to add original GTA next to III and onward because it's clearly inferior to what the series became afterwards and the only people that are going to say "OG GTA was better than III, Vice City, IV, etc." are people that know damn well they are bullshitters and contrarians.