[michaelschade]

I never said that was the entire reason, but if I were one of the artists involved (not that I'm any good with video), that would be part of my reason. When I take or edit a photo, although representing myself individually, I incorporate a part of me or my family in it–my name, somewhere, or sometimes even something that alludes to my company.

Now, I'm not saying that you are incorrect in what you perceive to be some of their reasoning for this. Of course Google wants to associate the work they do with their brand identity, and this video is indeed advertising. Anything a company does is advertising, to be fair.

That said, I don't personally believe that advertising and showing support for something are mutually exclusive. Just as a company is able to get their name out there while also donating to charity, Google is capable of spreading the Google name while also paying tribute to Freddie.