> How is it that Steam manages to avoid yanking games from people's libraries even after the games are delisted for licensing issues, etc?

Steam isn't innocent either. The instance that comes to mind is Order Of War: Challenge (https://www.forbes.com/sites/erikkain/2013/12/30/steam-remov...) but I've also seen people say other games have been removed from their libraries or silently replaced with "remastered" versions that removed things like licensed music. Publishers have also taken games from people's libraries by revoking their keys. Steam says publishers can do this whenever they want. In one case, after the sale they thought a player should have paid them more money (https://old.reddit.com/r/Steam/comments/w9jpd5/warning_publi...)