I am indeed aware that in such situations, since the depositor has not publicly and loudly declared their intent to deposit that money into my account, nor informed me that they will be depositing that money into my account, nor has the depositor published a contract that I've engaged with stating they need to send me that money, that such a situation would be interpreted as an accident by any reasonable person, including the legal system.

However, we are talking about a system where a party has loudly and publicly stated that they'll move money under certain public conditions and a third party has walked up and said, "I meet those conditions, I am owed said money", and the computer dutifully agrees. We are currently looking at the foolish party who has entered into a contract trying to get out of that contract because they no longer like it's terms. Unfortunately for them, human law mostly sides with contracts, even when those contracts are represented in code.