It's just clear old stupidity. Look, If you have let's say $2.5M worth of ETH at your wallet. You MUST double check hell, even triple check your transaction before hitting enter. But of course. the blockchain must be fixed for these high fees to stop.
That's right, you even need to check 30 times before sending. Obviously this is a blackmail case and it has been clarified, no one will be foolish enough to mistake $ 2,5M for transaction fee.