Earlier quoted context omitted.
It is bad reporting. The systems in question were used as a part of launching a DDoS attack, they were not the target of the attack. The high load then caused the systems to crash repeatedly.
Do you have a better source for that? In the article it rather reads like the control system was at the receiving end: The systems that were attacked tried to respond to the attack by rebooting the main control circuit.
1) done by actual criminals 2) pointed elsewhere, and the heating system was just one of the many systems used to initiate the attack.
They weren't more specific as to who attacked and who was the actual intended victim, but they were pretty sure the heatimg systems going down was just collateral.
Welcome to the Internet of Shit.