I read an NY Times article. Whether it was the article you referred to I don't know, as you opted not to include the headline of the article. I also read the three articles Muno posted, as well as others.
The lady that was "struck" by the vehicle and ended up on the hood stepped in front of the car and placed her hands on the hood, after the vehicle had stopped, in what appeared an attempt to prevent the car from leaving. After the car started moving, the lady took several steps back before jumping on the hood, and could just as easily moved from in front of the vehicle. As the car started to move another protester, possibly the one that grabbed her door and later jumped on the car as well, attempted to prevent the car from leaving by attempting to block the car with his bicycle.
As you didn't answer my question, I will ask again, did you watch the video?
Bloomington police search for the driver, car suspected of injuring two protesters