I've said before, but this is the sort of thing I would've gotten into. I don't really enjoy cooking or eating as a standard; there's food I like, sure, and I willingly cook over just eating prepackaged crap when I can, but I don't really enjoy the process of making it and with rare exception eating it is just sort of 'eh'. I honestly consider that something of a personal failure, as it's led to kind of a limited palate and that can make food-based social gatherings pretty awkward. But it's a daily chore I'm not good at or enjoy, and I can understand wanting to just skip it as a day-to-day thing and save it for special occasions.
But this? This is like willingly picking the shittiest future to live in. They're having this thing that gives you horrible side-effects, apparently does include actual preparation, and doesn't even taste good! Those people describing how Soylent tastes universally described something utterly unappetizing and bland from so many directions, and they're making me realize that even I have standards. And some of them are making meals with it, which I think is entirely missing the point.
And like people have said, this stuff already exists! I have a meal supplement in my kitchen, I have it for breakfast because in the morning I can't be fucked making anything complicated! It's never made me shit uncontrollably, only really involves stirring it into milk, and tastes at least somewhat like chocolate! They have made an objectively worse product for their end, by all factors, than something that already exists.