Anyone else feel uncomfortable about parking toddlers in front of a computer screen?
Other parents will use YouTube or TV or anything else as a source of inspiration, engagement and communication in addition to many other things they do with their kids.
And where parents are not interested in their kids and just park them in front of a screen, I'm comforted by the fact that computer screens, as opposed to the TV screens, provide access to a lot more than passive entertainment.
Like the story you linked to said, leaving a dog alone with a three year old is dangerous. There is no real danger in looking at videos with your kid (or letting them watch it themseles).