It's interesting because there used to be a similar cliche about Prius drivers being terrible when they were a new sensation.

Maybe there's something about people who are first adopters of "environmentally friendly" cars feeling a sense of moral license, https://en.wikipedia.org/wiki/Self-licensing, and end up being less conscientious on the road as a result.

Or maybe the rest of us just notice these bad drivers more because the cars stick out on the road as new and unusual.

Or maybe the drivers tend to just be rich, distracted assholes.