I would ask an opposite question, why were so many people bothered? When the fork happened, Ethereum was just a baby (and still is). It was barely out of Alpha (Frontier) stage, in very early Beta stage.
Letting the hacker walk away with millions at that point would have been silly. It was enough Ether to give the hacker the funds to DOS the system to death for years to come if he wanted to.
Letting the hacker walk away with millions at that point would have been silly. It was enough Ether to give the hacker the funds to DOS the system to death for years to come if he wanted to.