In one of the posts you referenced, he put 15 drops in a 12 ounce bottle. This reduces the concentration of the sodium chlorite solution from 28% to about 0.03%. If you add a little lemon juice to the solution the PH will drop and a small amount of chlorine dioxide will be released.
If we compare a 15 drop dose mixed according to the Miracle-Mineral-Supplement protocol with his solution we have his solution with roughly 300 PPM available chlorine dioxide (in a 12 ounce bottle) and about 1.5 PPM as free chlorine dioxide. On the other hand the Miracle-Mineral-Supplement dose would have about 1000 PPM available chlorine dioxide (in 125 ml of water) and about 200 PPM as free chlorine dioxide.
The MMS solution would have a PH of about 2.5 - 3, where his solution would have a PH of around 6.5 - 7.
The adverse effects of the MMS protocol are eliminated because the concentration is much lower, and the PH is nearly neutral.