Where i live there are laws about what can be written in the tos, what cant and what is irrelevant to the tos (invalid statements).
However everyone with more than a wallnut brain knows that you don't own the game physically and that you basically get a license to download it with your account, steam isn't responsible for the game itself (servers being shut down) you can in 99,99% of cases still download the game from steam even without key servers or the servers necessary for the games online mode, steam distributes from their own servers.
Nah im not defending anything, im saying that thats how it works and everyone that doesn't meme a IRL NPC knows and understands that. I also don't get why its about steam, every store is like that, but not because the store wants that, its the publishers, and they are the ones locking stuff. You could definitely sue them as they cant just shut down a service you paid for, but good luck with that.
RATTLE OFF-