This doesn't promote piracy. It only promotes piracy if you think that it's cool to steal a $4 game from an independent artist. Piracy should be about people getting it who either could not otherwise afford it, or about people frankly just objecting to predatory practises like streaming services' locking everything down to an overpriced cable-like subscription.
If you want to steal, go ahead, this isn't predatory and it's standard marketing.