It's misleading because it's a number of crashes that sounds bad, but there's no way of knowing if that's true from the headline if you haven't got a bunch of car statistics memorised

A less misleading title would be "Tesla autopilot involved in 70% of driving-assistance accidents this year"

Even that is potentially misleading if Tesla autopilot represents more than 70% of driver assisted miles on the road

Not matter what way the headline would have been phrased people would have complained. "Company X lost $money ..." headlines are printed all the time.

To me it doesn't look like unfair reporting but instead i see a group of people accusing with loaded language ("hit pieces" is loaded) normal reporting to be biased against Musk because "daddy can't be wrong" and criticism must there for be an attack.

I would say that the wording used subtly implies that it is a negative thing. Using "less then a year" signals, to me, that the number is high for a short amount of time. (being behind a paywall I cannot read the full article to judge if it is actually misleading based on that)

It's misleading because it doesn't fit their Agenda.