Sure piracy isn't necessarily a lost sale, but would there be more sales if people could not pirate the game, as with say a ps5 game? Especially in the case of rather widespread piracy in the weeks preceding release where even normal platform users may pirate because it's the only way to play. To what degree I couldn't tell you, it's most certainly not a 1 to 1 like the companies would like to argue, but there's almost certainly at least some amount of loss.