They also argued that there’s a “substantial market” for older or classic games, and a new, free library to access games would “jeopardize” this market. Perlmutter

And if that market demand isn't being catered to, or is being actively refused to be served, is there any wonder people are finding other ways to get that stuff?

All they're doing is hoarding this old software and preventing its use based on the speculation that they might eventually figure out a way to profit from long gone developers work.