A lot of what iffs that…
A lot of what iffs that apply to all systems but its so easy to turn off that if you are dealing with a low battery (and managed to get it started) then turn the auto off OFF and its not an issue.
The only accident it remotely could cause is being hit from the rear and do you really pay enough attention to that you would benefit from it? I did on a cycle once but cycle drivers are paranoid (and for good reason, they are after you if only by being oblivious).
At least on a Subaru if you don't like it you can turn it off (or get a Hybrid and the pedal kicks in the elecric drive)