I doubt most console gamers have enough of the know-how nor the desire to figure out how to emulate.
And before you say it’s easy: yes, for many that is often the case. But for an even greater amount of people all they want to do is install the game on their platform of choice and play. Too many hoops to jump through and the casual/technologically unmotivated audience loses motivation. And the minimum amount of hoops before that ends up being the case is smaller than you and I would probably hope for.