IIRC Steam lets people who purchased (or rather add to their library) a game access to it indefinitely. A famous example was second party side-scrolling half-life game named Codename Gordon. It’s delisted but still available with the right steam command. I personally also have a source mod on steam on my account where it had been delisted due to potential lawsuit but I can still play it if I wanted.
The fact that this post get as much ↓s as ↑s strengthens OPs whole argument.