I remain in favour of such a backlash. I still think they are a techno-evangelist pipedream and that they either won't work and will be quietly shelved, or, much, much worse, will work only at the expense of remodelling public space to accommodate them and their limitations (in an alliance of profit-hungry corporations, the techno-evangelists, and the sedentary - possibly the three most powerful forces in the world, come to think of it).
Best outcome is they might find a niche use in some very limited contexts (maybe taking the jobs of some long-distance truck drivers on long straight empty roads with little pedestrian or cyclist or even human driver traffic). I don't believe they will ever be ready for mass use in chaotic, crowded urban areas, not without imposing huge restrictions on people in those areas.
I mean, they are testing them in Arizona, a place with perfect weather, wide roads, good lines of sight, and (mostly) well-behaved other traffic. And still they have accidents. Can't see them translating well to more difficult parts of the world.