It’s difficult to tell fire patterns of items not completely destroyed from a video with a few angles, without being on scene and examining all angles, internal and external. The impact with the approach lighting system seems to have done a large portion of fuselage damage, possibly more than ground impact itself, what with the right wing being mostly gone. Survival wise, depending on the damage from impact, the right side emergency exit may have not been able to be opened, assuming anyone survived conscious and knew how to open it. Even so, either exit would've been surrounded by the pool fuel fire around the aircraft sadly, making even an escape likely not a survivable event.
The Statesville Fire Dept does have a CFR truck at SVH, but it isn’t manned. In the event of an aircraft incident, the first responding off-airport fire truck to arrive from station 2, cross-crews the CFR truck there with personnel from the Engine who are ARFF trained. Unfortunately, this incurs a delay in the response time if the fire crews don’t happen to be there at the airport from off-airport, which they normally would not be. This can be done, because SVH isn’t a 14 CFR 139 airport and has no requirement to have CFR vehicles; as it has no scheduled over 9 pax or unscheduled over 31 pax air carrier service. For airports that do have a singular CFR vehicle but with no requirement to have one, there is also no requirement for full-time manning, and thus a number of different methods of manning get utilized. Even some smaller airports with scheduled/unscheduled airline service, the CFR is only required to be manned during the time of arriving/departing air carrier aircraft.