Garbage editing. Every kid and their little sister is now posting nonsense on youtube to get subscribers and likes.
The problem is due to greed, these leagues and UEFA don't want to have an official channel on Youtube where highlights are posted. They're very stupid because at least that way they could make some money instead of none at all. The vast majority of football fans don't pay for TV subscriptions or stupid shit like that. They just want to see some highlights on Youtube and get on with their lives.