Recent scrims are being uploaded to youtube..?

I was on my Youtube homepage and I had noticed a recommended video; a scrim featuring two teams at worlds (I'm not going to name them because obviously teams don't want people to know who they're scrimming), but I had clicked on it to check if it was legitimate, and it is. I don't know how this happens, but isn't this actually a huge problem? As far as my understanding goes, doesn't Riot need to act on this immediately?

Thankfully a lot of people are downvoting it, but I saw a few comments saying "downloaded so if this is taken down I can put it up." (I'm not sharing it because obviously people shouldn't see it, and I trust Riot to be smart enough to find it on their own. Hell, anybody can find it if they have half a brain but still, you understand why I'm not posting any identifying information about it.)

EDIT: I also know that it might be a lot more complicated than Riot issuing a takedown notice on the videos, but it still strikes me as something that they can do something about, similar to the Spectate Faker problem a while back.