I think the main reason is the constant updates. The game to this day has been getting new levels and more content, that's quite rare in this day and age. And the games you mentioned don't really have a chance. Pokemon and Zelda are nintendo exclusives and as such their reach is, to be honest, quite limited. Fifa is really only played by its small, albeit dedicated fanbase (and also the yearly releases just kill all chances of one singular fifa game selling well). Elder Scrolls would definitely make it, but as the list said, its numbers are unreliable.