I've seen the ad. Misleading at best.
Articles about it are at the bottom
you're right about the protein powder, but as far as I know the rest is just false
For example here are the ingredients of a beyond Burger
Water, Pea Protein*, Expeller-Pressed Canola Oil, Refined Coconut Oil, Rice Protein, Natural Flavors, Methylcellulose, Potato Starch, Apple Extract, Pomegranate Extract, Salt, Potassium Chloride, Vinegar, Lemon Juice Concentrate, Sunflower Lecithin, Beet Juice Extract (for color), Carrot. *Peas are legumes.