On that day Monero went historically up in the morning and Iberia went historically down a few hours later.

Just someone casually paying +300 million euros to someone else and a blackout shortly after.

Did someone mentioned that this exact attack vector had been published some 4 months ago?

https://media.ccc.de/v/38c3-blinkencity-radio-controlling-street-lamps-and-power-plants

Even funnier is the EU representatives mentioning being too early to know what happened and on the same speech saying it wasn't a cyber attack.

Nahh.. I'm sure these are all just terrible coincidences.