The EULA that accompanies delisted Ubisoft games requires players to destroy their purchases. Stop Killing Games is fighting to keep titles working after companies abandon them. A major representative for EU publishers opposes solutions like support for third-party servers.
They both are. Both agreements can be terminated for any reason. Larion’s says nothing that would prevent them from terminating the agreement, it only clarifies that the signer can. There’s no real difference here.