It’s about companies that are against piracy for games they don’t sell anymore and don’t provide a way to play them. If they gave us a way to play them piracy wouldn’t be only option.
But even new games can have similar problem because of the price. Main reason why I don’t have any current gen console is because I need to pay hundreds of $ for it plus 80$ per game (they cost that much in my country). That’s insane in my opinion. Two years ago I got second hand moded Wii with 200 games and paid it less than I would pay for just 1 AAA game. I can’t afford (or justify) spending so much money on games when emulation exists.