Sometimes when you come up with a tidbit that the entire world of experience contradicts, it's healthy to stop and think "wait, am I full of shit?" Of course, you may not be full of shit, but let's say the odds are you are.

What "real world data" you have to contradict Google's and basically everyone's personal experience?

I have sites that are unbearable over HTTP/1.x and instant over HTTP/2. But maybe I was fooled by Google.