101 is pretty scary pretty much everywhere between Gilroy and SF (doesn't help that locals can barely drive even in perfect conditions; add two drops of rain, and the whole thing stops) but the title is clickbaity -- so far it doesn't look like it being a Tesla necessarily had anything to do with the accident.
Just imagine back before that chunk of 101 was even a freeway. US 101 was Monterey Road. That stretch from just south of IBM to San Martin was literally known as "Blood Alley", averaging a death per month.
It was then two lanes in each direction, undivided, with often a two-way left-turn lane in the middle. Lots of head-on crashes despite it being mostly straight after the initial bend off Monterey Rd.
And there we were, thinking that "well, but California has good roads!".
On/off ramps on 101 aren't that great now either (try getting on at Trimble and getting off on 87 at rush hour). But given that people manage to drive straight into things on Monterey (I live on Monterey Rd) even now, it must have been quite horrifying.
