Looks like a propaganda piece for the food industry to me. Why is there nothing about the heme, and its 40 other by-product compounds that they self certified

Looks like a propaganda piece for the food industry to me. Why is there nothing about the heme, and its 40 other by-product compounds that they self certified as safe instead of getting FDA approval as part of their bio-reactor process? You know they can't extract enough of it from beets to be economically viable, they have to use that bio-reactor process and 40 compounds that weren't previously known generally certified as safe on their say so. There's good reason to never willingly eat this.