There is a huge amount of vested interest in persuading people bitcoin or ethereum require no trust in third parties. This is not true, as illustrated by this case: the person writing code that’s supposed to secure your money made incorrect assumptions about security and was thus robbed. If you own bitcoin, you necessarily need to trust this person and his colleagues are neither malicious nor stupid. Why that’s better than making the same assumptions about state institutions and banks is, to me, not clear.