>Clearly you have not considered the scale they operate in.
Youtube literally operates walk-in 'creator spaces' where creators with popular channels can go to make use of editing equipment and resources. They can staff a media liaison office. They can staff a media liaison office in every major city of every first world country. They have those offices already existing to sell adverts, after all.
It would be trivial for them to operate those media liaison offices and ensure that things like this don't happen. They choose to hide behind the 'oops, the algorithm did it, nothing we could have done' excuse.