Excuse me while I pick a few nits: Human beings have been “genetically modifying” plants and animals via cross-breeding since before recorded human history began; we’re just a whole lot better at it since Gregor Mendel showed us the way. As a by-product of yeast fermentation, heme is hardly “synthesized blood” since (as is pointed out in the article) “every living cell has heme as an essential biomolecule.”
Where does it say that Impossible throws away 95% of the potato? Answer: It doesn’t say any such thing, so why would you assume that to be fact?
As for your opinion that it “sounds rather unappealing,” have you ever seen how most meat (not just beef) is raised, processed and handled in the U.S.? I suspect not, because even though I am a dyed-in-the-wool carnivore who consumes meat in one form or another every day, I am all too aware of just what process those steaks, pork chops and rack of lamb on your table went through before they landed on your plate.