Hasbro has thankfully been pretty lax on it so far, which is definitely a plus (and probably a smart business decision too considering how fast FiM has grown).
I honestly think Google wanted the video to be as un-serious as possible, since pretty much everything on youtube is copyright in some form. Looking at the top 20 right now, every single one violates it.
Here is more technical article.
Youtube's Copyright School
Thanks to Sgolem for the article link!
And the video (Hosted by...Happy Tree Friends... I love Google!)
tl;dr: Every single video posted here so far is violating copyright! hurrah!
Apparently Youtube's video violated Youtube's copyright
So here is a link to it... Yes the same video.
Strangely, the embedded one below was actually a link on the official youtube channel, so I don't know why it was reported as copyright. I'm going to keep it cause it's lolworthy