Sounds like a fairy tale, but it actually happened [2]. I suspect a human overreaction and then automated systems taking over. Anyway, eventually it was escalated really high up and resolved. I can't share any more details unfortunately, even though I'd like to write more about this.
[1] English translation: https://cert.pl/en/posts/2024/12/Ad-fraud-on-large-online-pl...
[2] Our reaction post about this, in Polish: https://cert.pl/posts/2024/11/blokada-na-meta-stanowisko/.