See I just don’t like mineral acids. Intellectually I’m sure Food-grade citric acid and Food-grade Phosphoric are made via similar industrial processes, but still I’d just prefer something I don’t use as a sanitizer.
Maybe it’s because back in the day I had to work with ClF3 (https://en.wikipedia.org/wiki/Chlorine_trifluoride), and that gave me a more then healthy fear of inorganic compounds. Then again, once I thought launching 1oz blocks of cesium into lakes was fun. Also, I don’t think there is such a thing as over healthy fear of ClF3.