I found the interview at Waymo's website:
https://medium.com/waymo/keeping-motorcyclists-safe-c40f3bb2f2d0A quote: "How do you think Google’s self-driving cars help make your ride safer?
Christian: For a motorcyclist, the biggest issue is visibility. I’ve lost count of the number of times that a driver hasn’t seen me coming on my bike, or has made a turn in front of me without first looking. Our self-driving cars don’t get distracted and can see 360 degrees, two football fields away. Humans also have more difficulty seeing smaller things — like bikes — when there is less light. But thanks to our suite of sensors, our cars are just as capable of seeing motorcycles in the pitch dark as in full sunlight."
I can confirm that the behavior of google's self driving car changes when a motorcycle approaches it (when last year I was riding in Mountain View - CA and came really close to one of those cars, it slowed down and made more room for me to lane split).