Looking at #4 we see that in order for chlorite to be reduced to chloride you need both hydrogen and excess electrons in the right combination and at the right time. Under controlled conditions this is easy to do, but in nature it becomes more difficult. The testing suggests that it only occurs about 40% of the time.
#5 and 6 point out differences between water treatment pipelines and the human body.
In water distribution you start out with clean pipes and bacteria and toxins form a biofilm on the walls of the pipe. Chlorine dioxide reacts with this natural organic material, breaks down to chlorite, the chlorite penetrates the protective film of the biofilm, the chlorite encounters acids and re-forms chlorine dioxide. The chlorine dioxide kills off the biofilm.
In the body we are lined with biofilms. We call them mucous or saliva but if we eliminate them the body dies.
In water distribution most of the natural organic material has been filtered out. In the body natural organic material abounds.
One of the issues the people of Ohio had was that chlorine dioxide is not effective at reducing the toxins produced by the algae in the water supply. The problem is that the chlorine dioxide gets used up by the natural organic matter and the toxins don't get eliminated. Water treatment guidelines prevent simply increasing the amount of chlorine dioxide used because there are limits on the amount of chlorite allowed.
It is important to understand how chlorine dioxide works in mechanical systems, but it is also important to understand how the body differs from those systems.