Re: @AndyS
Dunno. I personally think the actual recommendation should be to drive in a way that allows you to avoid perfectly stationary trees,
Given that Tesla now reports, via AP, that the driver was doing 155km/h* (nearly 100mph for youse non-metric types) prior to the crash he was either unaware (unlikely) of this recommendation, temporarily unable to heed this advice for any number of reasons, or he decided to throw it to the wind..
BTW, I do worry about trees next to the road, but rather in a way that makes that I'm aware of their presence and not having cause to meet them through other events.
* if correct, that's nearly twice the speed limit for that road.