You are making the argument that if, say, you've made a bunch of ethereum through means that the majority of miners don't like, they can just fork the currency and take your coins from you, and that's totally fine.
I don't know enough about Ethereum to know whether or not that is technically possible, but I believe it's technically possible with Bitcoin. I think the common misconception of these technologies is that trust is eliminated. It's not, it's simply distributed - you have to trust that the majority miners will find it in their own interests not to steal money from your wallet. I am not saying one way or another whether this state of affairs is 'fine', just pointing out the reality.
The code had implications that the writers didn't intend. Those implications involved attackers being able to take/steal a large amount of ETH under its terms. But those writers got the entire network to fork and give them back their money in direct contravention of the terms of the code/contract.
Other than the 'totally fine' part that accurately describes the situation with basically all cryptocurrentcies. How many coins you have is stored in a distributed ledger which can be arbitrarily modified with a majority of computing power.
