Google sells that traffic to me: I'm buying ads from the Google Search Page and from YouTube and from ads Google puts anywhere else, so it is Google's traffic.

If google can't serve them an ad, they don't care about them, so QUIC isn't for them, so in order for QUIC to make business-sense to google it has to help them serve more ads.

The theory is if QUIC helped anyone out, Google (being huge) would be able to sell more ads to me if I use QUIC as well. In reality, they are able to sell me more ads when I turn off QUIC, which means this theory cannot be true.