I bet this video it's just a hoax :
Fist : Who said iron solution medication plus beet juice acts as heme (hemoglobin similar) for taste, giving meat flavor if together with garlic and nutritional yeast???
Second : Impossible Burge 2.0 do not use tempeh buy soy texturized protein extract (very popular). And the binder in 2.0 it's in methylcellulose. Even 1.0 version was different from the ingredient in this video.
Third : The texture it's so far away that people would recognize it's not meat, even if by mirale the taste was similar.