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>still in the TCG
>still used in promo artwork
>Green uses one in Pokemon Special
>got its own C-gear skin in Gen 5
>received cross-gen evolutions in 2 separate generations
>several NPC trainers use Porygon in SM including a named character (Gladion)
>they continue handing it out as gift Pokemon in most games
>Conversion specifically chosen to receive the Z-move buff alongside some other Splash-tier event moves
>it's part of Gen 1, meaning its existence will always be acknowledged
They're more than willing to work with Porygon in the games and other canons at least, just not the anime (even then it's made very minor cameos here and there). The C-Gear one in particular feels a bit more special than the rest. There are worse positions to be in Gamefreak's eye and Porygon's in a decent spot for the most part.