As others have commented, this article is a little bit FUD-ish and doesn't back up all it's claims that much better than Soylent. But personally what I was attracted to in Soylent, I found in better in Huel. Real nutritionists, who share great content about their choices, etc. Very interesting to follow, and I'm a big fan of their powder for breakfast and their "Hot & Savory" for lunches.
My diet is now almost entirely plant-based, there are noticeable health improvements, and it's as cheap and efficient as Soylent.