It might, but remember FMCSA did away with the freight insurance requierment in 2010. If there is no mandate to carry insurance why should they, and as long as we have shipers who live the Walmart cheap prices mentality we will always have the fly by night carriers and those who will exploit the inexperianced.
Whole the vehicle may not legally be required to carry cargo. The "carrier" they are pulling for that day has most likely signed a contract stating they have cargo insurance. Most likely on the amount of 100k. Borderline fraud in my opinion. I have seen some sign contracts that require 100k and then I read online that they require their vehicles to get their own cargo but only 20k?