If it's not the galvanic effect, it would be more direct corrosion as the block will be "soaked in a standard electrolyte material, such as potassium chloride"

If it's not the galvanic effect, it would be more direct corrosion as the block will be "soaked in a standard electrolyte material, such as potassium chloride". And - given that the concrete will be poured "normally" - the reproducibility of these "power foundations" is likely to be low (and as you say there is no easy wayback). Besides, concrete is not just water and cement, the various sized aggregates (sand, gravel, finer aggregates) are what make it actually "concrete", the "grain" of concrete used in construction is very different from pure cement+water (and 3% carbon) mix, the samples they made (1 mm thick) won't likely scale up.