Yes, the EMT training period does seem a bit short, but that's probably because the medical field needs so many of them. I think it should be longer because EMTs are responsible for some actions that can contribute to saving or destroying lives. EMT training should be much more extensive, and it should cover emotional reactions that one may not expect to have in the midst of an emergency.
EMT workers are the front line personnel when tragedies occur. But, a recent study indicates many lives lost to traumatic injury could be saved with improved critical care. People who work as EMTs are dedicated and caring people. They will take the necessary training to become an EMT. Requiring more rigorous training could save lives.
I believe the emergency medical technicians are for emergency situations wherein critical care is given until transport can be made to a medical doctor. The standing requirements for EMTs is sufficient to sustain life as they are trained to follow a medical doctor instructions which they are in communication with.
No, EMT training does not need to be more rigorous. EMT's have an extremely important job that should not be taking lightly. The training they receive is specialized and gives them all of the knowledge they need to save a life. Training any longer than they do is not necessary.