In the examples you gave:
1. "a traffic offense for causing serious injury or death to a vulnerable individual while operating a motor vehicle"
2. "Despite that evidence, prosecutors declined to seek criminal charges against Vanderweit, saying her carelessness didn’t amount to vehicular homicide" - "Careless driving" is a charge they give drivers when the prosecutor wants to make a quick deal and doesn't think they can prosecute anything higher. I wonder if there's more to the story here given that there were at least 13 witnesses who could explain exactly what happened...
3. "pleaded no contest to overtaking and passing a cyclist without keeping a distance of at least 3 feet"
"Current laws in many ways do not give substantial protections to victims struck by vehicles. As legislative liaison for the Maryland State’s Attorneys’ Association, I would welcome any discussion and examine any changes proposed to the legislature. We share concerns about keeping our community members safe on the roads,” said State’s Attorney John McCarthy."
https://www.bicycling.com/news/a30607392/group-ride-florida-...
https://www.gainesville.com/story/news/crime/2019/04/16/no-c...
etc etc etc