Who breaks it though? For example Hatoful Boyfriend haven't been updated for years, Macs moved to 64bit only so it was essentially unplayable on modern Macs.
Is it the devs fault, are you obliged to update your game forever?
Is it Apple's fault for the lack of backwards compatibility?
Epic was selling a broken game so they must remove it.
Btw that happened on Steam too now they only sell the Windows version.
Assuming Hatoful still works for the users who bought it on the hardware/OS that they bought it for then it's not a good comparison.
I can also play it on Linux, and Linux can run on Mac hardware.
All of that sounds like a pain in the ass, and if the game is not worth the trouble I'll just not go through the trouble. But I am the one who makes the choice, not the owner of some proprietary server.
The fault would be whoever designed it so a single player (or local multiplayer) game wouldn't run on said system in perpetuity.
Mind you, some time in the future an AI will be able to watch Let's Play-style footage and generate the game for you.
Removing official servers when there is no alternative means I can't use the product on the platform it was listed to work at.