And it doesn't quantify how many other lives have been saved specifically because the accidents involved bigger, sturdier, safer cars/trucks/SUVs. That has to be a significant statistic.
E=1/2mv^2
The energy of a crash at the same speed is linearly scaled with mass though. Especially when you have two such monsters collide, it's significant.
For the bigger vehicle, perhaps, but a smaller vehicle, even if up to modern standards, is less safe due to the larger one.