This exchange isn't code running on the blockchain--nor was this transfer even managed by code at all (the article says it involved a manual typo by a human)--and so that seems irrelevant.
I'm sad to hear that the courts sided with the exchange.
What's the statute of limitations on noticing a typo in your account?
Had the recipient bought cryptocurrencies with the proceeds, I wonder how much harder that would be to claw back. Could they still come out on top if they sell the house they bought for a profit?