Theres no way Hawkins could've survived
Not only was he stabbed multiple times in the neck, Sartain also ran over his body with the cop car. I think the writers forgot about him being ran over and just make it as if he was just stabbed in the throat once, no he was also ran the fuck over.
They make no mention of him being ran over, he comes in the hospital as if he's just got a neck wound.