I think unfortunately Marco was in a critical condition and sadly going to die regardless of what treatment he received, but it is definitely worrying and something DORNA should look into for future events. The standard of marshalling definitely seems to be variable across the various countries visited in Moto GP, and in F1. The UK is blessed with some of the best marshals around, even at national meets but some countries lag behind a bit in this respect.
God forbid something happened when the rider/driver was in the care of the marshalls, and paralysis of a rider or even worse a fatality occurred as a result. It doesn’t bear thinking about.