Can paramedics revive civilians?

Solution 1:

According to Wikia it is possible:

Instead of only the ambulance's passenger, both paramedics will now tend to the injured. Due to the absence of the injury system, the revival attempt has been made simpler. Now, the change of revival is simply random. If the paramedics are not successful in reviving the deceased, they will now stand around the body while one examines the body and the other files a report. Pedestrians may gather around the body and watch, while police may arrive in the case of many murders. If revival is possible, the injured will enter the ambulance with the help of the paramedics and will be driven to hospital.

This indicates it IS possible for a pedestrian to be revived by paramedics. You (or actually the pedestrians) are just very unlucky so it seems.