Yeah but think of how many traffic stops there must have been. The ratio isn't bad at all.
I clicked on two of the links in the Twitter thread and one had a passenger shot when he was pulling a gun out of his waistband, and another had someone with PCP in their system flee from a traffic stop, including driving wrong way, and then wrestle with an officer, bite him, and get control of his taser.
So it’s not that 600 traffic stops resulted in someone randomly being shot after the officer walked up to the car and decided to kill someone instead of giving a ticket.
Edit: Since it probably needs saying to avoid assumptions to the contrary, but no I don’t think anyone driving along minding their own business deserves to be shot and killed. Whenever numbers are used in terms of police shootings, killings etc, uses of force etc, it just groups everything into one, ignoring justified uses of force etc.