Please note there are different meaning of the "law". And for blockchain it's "law of nature", i.e., just how it works, the principles you have to accept, not l

Please note there are different meaning of the "law". And for blockchain it's "law of nature", i.e., just how it works, the principles you have to accept, not legal laws. So at least for the Ethereum Classic thing, the code was written in the way that just allowed such action and therefore you should not reverse the transaction. Note that the hack was still illegal, that's the fact, so you can (and should) go to the law enforcement to do something with it. But there was no bug in the code of the blockchain itself, it was working exactly as it was supposed to. There was a bug in the smart contract though, but it's not a part of the blockchain, so it's not a violation of principles/nature of blockchain ("code is law") but a 3rd party mistake. Same here, no principles of the blockchain was broken. So the "code is law" stands. But the transaction is still illicit, and is a hack.