That's really interesting and all but first off, do you know how long exactly, this would take?
You're asking about a pinch of sugar? I'd say 4 hours.
It's a
tiny amount of disinfectant. It's not enough to sanitize water (like a swimming pool) exposed to butt cracks, bugs falling into it, etc. Just pour it into your soil and the first 1" of soil will have more material to exhaust that level of disinfectant than a swimming pool does. Just feed with a touch of sugar and humic/fulvic acids to reinvigorate that slight disinfection.
Everyone who grows weed has a microscope to examine trichomes. If it goes to 100x you should be able to look at your water after adding a pinch of sugar?
IMO, this is in the realm of sweating the small stuff. I can understand taking steps to neutralize chlorine in an aquarium. The fish aren't rapidly multiplying colonies. You can't drop a pinch of sugar in the water and have fish explode in numbers (to make up for the 10% who perished as a tiny amount of chlorine exhausted itself on them).
I can understand organic purists going to great lengths like this. If you spend months "cooking" soils, cultivating microbial and fungal colonies, I can understand how difficult it could be to think about adding something harmful. But, technically, this amount of harm isn't much. It's designed to purify a mostly pure (closed) water delivery system. By definition it won't have much effect on a very dirty medium (which is what our soil is).